OE Match

Lambda Oxygen Sensor, AFTER Catalytic Converter, Cyl 1-3.

Restore accurate emissions monitoring and dependable catalytic converter diagnostics with this OE Match Lambda Oxygen Sensor. Designed for compatible Porsche applications, this sensor is specified for the cylinders 1–3 exhaust bank and is positioned AFTER the catalytic converter.  

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17

Cars With Option Codes:
7GB - Emission Standard ULEV 2

Diagram Ref No 32

Also known as a downstream, post-cat or O2 sensor, the lambda sensor measures the oxygen content of the exhaust gases after they have passed through the catalytic converter. This information is transmitted to the engine control unit (ECU), allowing it to assess catalytic converter performance and monitor the emissions-control system.

Unlike the lambda sensor located before the catalytic converter, which plays a primary role in air-fuel mixture control, the downstream sensor is principally responsible for monitoring catalyst efficiency. By comparing upstream and downstream oxygen sensor signals, the ECU can determine whether the catalytic converter is processing exhaust gases effectively.

Continuous exposure to high exhaust temperatures, vibration, moisture and combustion deposits can eventually cause the sensor to respond slowly, produce inaccurate readings or fail electrically.

This OE Match Lambda Oxygen Sensor provides a high-quality replacement for a worn, contaminated or failed downstream sensor, helping restore accurate post-catalyst monitoring.

What This Product Does:

• Is specified for the cylinders 1–3 exhaust bank.
  
• Is installed AFTER the catalytic converter.
  
• Measures oxygen content in exhaust gases leaving the catalyst.
• Sends post-catalyst oxygen information to the ECU.
• Helps monitor catalytic converter efficiency.
• Works in conjunction with the upstream lambda sensor.
• Supports onboard emissions diagnostics.
• Helps identify abnormal catalytic converter operation.
• Provides information used to monitor emissions-system performance.
• Helps distinguish sensor faults from genuine catalyst deterioration during diagnosis.
• Replaces a slow, contaminated, damaged or failed downstream sensor.
• Provides an OE Match alternative for compatible Porsche applications.

Symptoms Of Wear Or Failure:

• Check engine or engine-management warning light.
• Downstream oxygen sensor-related diagnostic fault codes.
• Cylinders 1–3 bank sensor faults.
• Post-catalytic converter oxygen sensor fault codes.
• Catalyst-efficiency-related diagnostic codes.
• Intermittent engine-management warnings.
• Implausible or inconsistent oxygen sensor readings.
• Sensor response that is unusually slow during diagnostic testing.
• Sensor output remaining at an abnormal or fixed value.
• Oxygen sensor heater circuit faults.
• Failed emissions testing where applicable.
• Damaged sensor wiring or insulation.
• Corroded or damaged electrical connectors.
• Physical sensor damage caused by heat, corrosion or road debris.  

Why Replacement Matters:

• The downstream lambda sensor plays an important role in the vehicle's onboard emissions monitoring system. The ECU relies on its signal to assess how effectively the catalytic converter is processing exhaust gases.
• If the sensor becomes slow or inaccurate, it can provide misleading information about catalyst performance. This may trigger persistent engine-management warning lights or catalyst-efficiency fault codes even when the catalytic converter itself is still functioning correctly.
• A defective heater circuit can also prevent the sensor from reaching its intended operating temperature efficiently, potentially interfering with accurate emissions monitoring.
• Reliable downstream sensor operation is particularly important when diagnosing catalytic converter problems. If the ECU cannot trust the post-catalyst oxygen signal, determining whether the fault lies with the sensor, engine operation or catalytic converter becomes more difficult.
• Correct diagnosis and replacement of a confirmed faulty sensor can also help prevent unnecessary replacement of a significantly more expensive catalytic converter.
• Replacing a defective component with this OE Match Lambda Oxygen Sensor helps restore accurate catalyst monitoring, reliable emissions diagnostics and dependable engine-management operation.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

958906262AB

The product you are viewing cross references to these numbers

RIGHT Lambda Oxygen Sensor, BEFORE Catalyst.

Restore accurate air-fuel mixture monitoring and dependable engine-management performance with this OE Match Right Lambda Oxygen Sensor. Designed for compatible Porsche applications, this sensor is specified for the RIGHT side, BEFORE the catalytic converter.

Fits:

• Porsche 955 Cayenne 3.2L V6 2004-06  

Diagram Ref No 26

Also known as an upstream, pre-cat or O2 sensor, the lambda sensor measures the oxygen content remaining in the exhaust gases immediately after combustion. It sends this information to the engine control unit (ECU), allowing the ECU to determine whether the engine is operating with a rich or lean air-fuel mixture and adjust fuel delivery accordingly.

Because this sensor is located before the catalyst, it plays an important role in closed-loop fuel control. Accurate readings help maintain efficient combustion, responsive engine performance, appropriate fuel consumption and controlled exhaust emissions.

Lambda sensors operate in an extremely demanding environment and are continually exposed to high exhaust temperatures, vibration and combustion deposits. With age, the sensing element may become contaminated or slow to respond, while the internal heater circuit, wiring or connector can also deteriorate.

This OE Match Right Lambda Oxygen Sensor provides a high-quality replacement for a worn, contaminated, damaged or failed original sensor.

What This Product Does:

• Is specified for the RIGHT-side application.
• Is positioned BEFORE the catalytic converter.
• Measures oxygen content in the exhaust gases.
• Sends exhaust oxygen information to the ECU.
• Helps determine whether the engine is running rich or lean.
• Allows continuous adjustment of fuel delivery.
• Supports accurate closed-loop mixture control.
• Helps maintain efficient combustion.
• Supports responsive acceleration and smooth engine operation.
• Helps optimise fuel consumption.
• Contributes to correct exhaust emissions.
• Helps protect the catalytic converter from problems associated with incorrect fuelling.
• Replaces a slow, contaminated, damaged or failed oxygen sensor.
• Provides an OE Match alternative for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Check engine or engine-management warning light.
• Lambda or oxygen sensor-related diagnostic codes.
• Bank-specific rich or lean mixture faults.
• Increased fuel consumption.
• Rough or unstable idle.
• Hesitation during acceleration.
• Poor throttle response.
• Reduced engine performance.
• Engine running excessively rich or lean.
• Strong fuel smell from the exhaust.
• Increased exhaust emissions.
• Failed emissions testing where applicable.
• Intermittent engine-management warnings.
• Slow sensor response during diagnostic testing.
• Implausible or inconsistent lambda readings.
• Oxygen sensor heater circuit faults.
• Damaged wiring, insulation or electrical connectors.  

Why Replacement Matters:

• The pre-catalytic converter lambda sensor is a key feedback component within the engine-management system. The ECU relies on its signal to make continual adjustments to fuel delivery as engine speed, load and operating conditions change.
• As a lambda sensor deteriorates, it can become slower or less accurate without immediately failing completely. This may result in less precise mixture control and contribute to higher fuel consumption, reduced performance, unstable running and increased emissions.
• Incorrect fuelling can also affect the catalytic converter. An excessively rich mixture may allow unburned fuel to enter the exhaust system, potentially increasing catalyst temperatures and accelerating deterioration.
• If the sensor fails completely, the ECU may substitute calculated values or adopt a fallback strategy. The vehicle may remain driveable, but performance, fuel economy and emissions can be compromised.
• Because this sensor is specified for the right-side pre-catalyst position, correct identification is especially important on engines equipped with multiple exhaust banks and lambda sensors.
• Replacing a defective component with this OE Match Right Lambda Oxygen Sensor helps restore accurate mixture feedback, efficient combustion and dependable engine-management performance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

958906262B

The product you are viewing cross references to these numbers

Boost Pressure Sensor.

Restore accurate turbocharger boost monitoring and dependable engine-management performance with this OE Match Boost Pressure Sensor. Designed for compatible Porsche applications, this sensor measures pressure within the engine's intake and boost system and sends this information to the engine control unit (ECU).

Fits:

• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
• Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
• Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
• Porsche 992.1 Carrera 2 3.0L 2019-24
• Porsche 992.1 Carrera 4 3.0L 2019-24
• Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
• Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
• Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
• Porsche 992.1 Targa 4 3.0L 2020-24
• Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
• Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
• Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
• Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
• Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
• Porsche 9YA Cayenne GTS V8 4.0L Petrol (460Hp) 2020-23
• Porsche 9YA Cayenne Coupe GTS V8 4.0L Petrol (460Hp) 2021-23
• Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
• Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
• Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
• Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
• Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
• Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
• Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
• Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
• Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
• Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
• Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
• Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
• Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
• Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
• Porsche 971.2 Panamera 2.9L V6 2021-23
• Porsche 971.2 Panamera 4 2.9L V6 2021-23
• Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
• Porsche 971.2 Panamera 4S 2.9L V6 2021-23
• Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
• Porsche 971.2 Panamera GTS 4.0L V8 2021-23
• Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
• Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
• Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
• Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
• Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
• Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21  

Diagram Ref No 6

On turbocharged engines, accurate boost pressure data is essential for controlling performance and protecting the engine. The ECU uses the sensor signal to compare actual boost pressure against the pressure required for the current engine speed, load and throttle demand.

A correctly functioning boost pressure sensor helps the engine-management system maintain consistent turbocharger performance, efficient combustion and predictable power delivery. If the sensor becomes contaminated, electrically faulty or inaccurate, the ECU may receive incorrect pressure information, potentially resulting in reduced performance, inconsistent boost or a protective reduced-power mode.

This OE Match Boost Pressure Sensor provides a high-quality replacement for a contaminated, damaged or failed original sensor, helping restore accurate boost pressure feedback and reliable turbocharged engine operation.

What This Product Does:

• Measures pressure within the applicable intake or boost system.
• Sends boost pressure information to the ECU.
• Allows the ECU to monitor actual turbocharger boost pressure.
• Helps the engine-management system compare requested and actual boost.
• Supports correct turbocharger control.
• Helps maintain consistent power delivery.
• Supports accurate engine load calculations.
• Helps maintain responsive acceleration and throttle operation.
• Assists the ECU in detecting underboost conditions.
• Assists the ECU in detecting overboost conditions.
• Supports engine and turbocharger protection strategies.
• Provides important data for engine-management diagnostics.
• Replaces an inaccurate, contaminated or failed pressure sensor.
• Provides an OE Match alternative for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Check engine or engine-management warning light.
• Boost pressure-related diagnostic trouble codes.
• Underboost or overboost fault codes.
• Reduced engine power.
• Poor acceleration.
• Sluggish throttle response.
• Inconsistent turbocharger boost.
• Sudden loss of boost.
• Engine entering a reduced-power or protective mode.
• Hesitation under acceleration.
• Uneven or unpredictable power delivery.
• Increased fuel consumption.
• Engine performance that changes intermittently.
• Implausible boost pressure readings during diagnostic testing.
• Pressure readings that do not correspond with engine load.
• Damaged electrical wiring or connector.
• Contamination around the sensor or sensing element.  

Why Replacement Matters:

• Accurate boost pressure information is critical to the control of a turbocharged engine. The ECU relies on the sensor to determine whether the turbocharging system is producing the expected pressure.
• If the sensor reports an inaccurate value, the ECU may interpret a correctly operating turbocharger as producing too much or too little boost. This can trigger diagnostic faults and cause the engine-management system to limit power as a protective measure.
• A sensor that reads incorrectly can therefore cause significant performance problems even when the turbocharger itself is mechanically sound.
• Accurate boost monitoring is also important for engine protection. Excessive boost can increase cylinder pressures, combustion temperatures and mechanical loads, while insufficient boost can indicate leaks or problems elsewhere in the turbocharging system.
• An intermittent sensor can be particularly troublesome because the vehicle may perform normally during some journeys and unexpectedly lose power during others.
• Replacing a defective component with this OE Match Boost Pressure Sensor helps restore accurate pressure feedback, consistent boost control and dependable engine-management operation.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAC906051

The product you are viewing cross references to these numbers

Window Switch, Black.

Restore reliable electric window operation and the correct interior appearance with this OE Match Black Window Switch. Designed for compatible Porsche applications, this replacement switch provides electrical control of the applicable power window while featuring a black finish to complement the original interior controls.

Fits:

• Porsche 957 Cayenne 3.0L Diesel 2009-10
• Porsche 957 Cayenne 3.6L 2009-10
• Porsche 957 Cayenne S / GTS 4.8L 2009-10
• Porsche 957 Cayenne Turbo / Turbo S 4.8L 2009-10  

Diagram Ref No 20

Window switches are among the most frequently operated electrical controls inside a vehicle. Each press activates internal electrical contacts that send a command through the window control system, allowing the window motor and regulator to raise or lower the glass.

Repeated use, age, contamination and general wear can cause the internal contacts or mechanical switch mechanism to deteriorate. The switch may become intermittent, unresponsive, loose or sticky. The visible black surface can also become scratched or worn, affecting the appearance of the interior.

This OE Match Window Switch provides a high-quality replacement for a worn, damaged or defective original switch, helping restore dependable window operation and a clean OE-style appearance.

What This Product Does:

• Controls operation of the applicable electric window.
• Sends raise and lower commands to the power window system.
• Provides convenient window operation from the relevant control position.
• Helps maintain consistent electrical contact when operated.
• Supports normal opening and closing of the window.
• Restores responsive operation when the original switch has deteriorated.
• Replaces an intermittent or non-functioning window switch.
• Replaces a cracked, loose or physically damaged switch.
• Helps restore the appearance of worn interior controls.
• Features a black finish.
• Provides an OE Match alternative for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Window does not respond when the switch is pressed.
• Window operates in one direction but not the other.
• Intermittent electric window operation.
• Switch must be pressed several times before the window responds.
• Window only operates when the switch is pressed firmly.
• Delayed response from the window.
• Switch feels loose or worn.
• Button sticks when pressed.
• Switch does not return correctly after operation.
• Cracked or broken switch button.
• Worn, scratched or deteriorated black finish.
• Electrical operation changes when the switch is moved or manipulated.
• Window operates correctly from another control but not from this switch.
• Visible damage to the electrical connector or switch housing.  

Why Replacement Matters:

• A properly functioning window switch provides predictable control of the electric window system. As internal contacts deteriorate, the switch may become increasingly intermittent before eventually failing completely.
• A defective switch can leave the window stuck in the closed position or, more inconveniently, prevent a lowered window from being closed. This can expose the vehicle interior to rain and other weather conditions and may create a security concern when the vehicle is unattended.
• Reliable window operation is also useful for everyday driving, including ventilation, parking barriers, toll booths and communication without opening the door.
• Physical deterioration can be another reason for replacement. Window switches occupy a prominent position within the cabin, and worn coatings, scratches or damaged buttons can detract from an otherwise well-maintained interior.
• Replacing a deteriorated component with this OE Match Black Window Switch helps restore dependable electrical operation, responsive window control and a cleaner OE-style interior appearance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

955613162036N3

The product you are viewing cross references to these numbers

Window Switch.

Restore convenient and reliable electric window operation with this OE Match Window Switch. Designed for compatible Porsche applications, the switch provides the electrical control used to raise and lower the applicable electric window.

Fits:

• Porsche 955 Cayenne 3.2L V6 2003-06
• Porsche 955 Cayenne S 4.5L V8 2003-06
• Porsche 955 Cayenne Turbo 4.5L 2003-06
• Porsche 955 Cayenne Turbo S 4.5L 2006>>
• Porsche 957 Cayenne 3.0L Diesel 2007-08
• Porsche 957 Cayenne 3.6L 2007-08
• Porsche 957 Cayenne S / GTS 4.8L 2007-08
• Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-08

Diagram Ref No 20

Electric window switches are operated frequently throughout the life of the vehicle. Each press activates electrical contacts within the switch, sending the appropriate command to the window system. With age and repeated use, these internal contacts and the external switch mechanism can wear, become intermittent or fail completely.

Physical wear can also affect the appearance and feel of the switch. Buttons may become loose, sticky, damaged or unresponsive, while contamination can interfere with the internal electrical contacts.

This OE Match Window Switch provides a high-quality replacement for a worn, damaged or faulty original switch, helping restore dependable window control and a properly functioning interior control system.

What This Product Does:

• Provides electrical control of the applicable power window.
• Sends the raise or lower command to the electric window system.
• Allows convenient operation of the window from the relevant control position.
• Provides momentary electrical switching when operated.
• Supports normal opening and closing of the window.
• Helps maintain convenient everyday operation of the vehicle.
• Replaces a worn, intermittent or unresponsive switch.
• Helps restore consistent electrical contact within the window control circuit.
• Replaces a physically damaged or cosmetically deteriorated control.
• Provides an OE Match alternative for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Window does not move when the switch is pressed.
• Window operates in one direction but not the other.
• Intermittent window operation.
• Switch must be pressed repeatedly before the window responds.
• Window only operates when the switch is held or pressed in a particular position.
• Delayed response from the electric window.
• Switch feels loose or excessively worn.
• Button sticks when pressed.
• Switch no longer returns correctly to its normal position.
• Cracked or physically damaged switch button.
• Worn or deteriorated switch surface.
• Electrical operation changes when the switch is moved or pressed firmly.
• Window operates correctly from another switch but not from this control.
• Diagnostic testing indicates a problem with the switch or its circuit.  

Why Replacement Matters:

• A reliable window switch is important for convenient and predictable operation of the electric window system. An intermittent switch can make window operation frustrating and may eventually stop functioning completely.
• Internal electrical contacts can gradually deteriorate after thousands of operating cycles. This can result in increased electrical resistance or inconsistent contact, causing the window to operate only occasionally or in one direction.
• A sticking or physically damaged switch can also make it difficult to control the window accurately. Where the vehicle incorporates automatic or one-touch window functions, a defective switch may interfere with normal operation depending on the system design.
• Window operation also has practical importance beyond convenience. Being able to open and close the window reliably is useful for ventilation, toll booths, car parks and everyday access. A window that cannot be closed can also leave the vehicle vulnerable to weather and security issues.
• Replacing a faulty component with this OE Match Window Switch helps restore consistent electrical control, dependable window operation and the correct appearance of the interior controls.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

955613162026N3

The product you are viewing cross references to these numbers

Fuel Pressure Sensor.

Restore accurate fuel pressure monitoring and dependable engine-management performance with this OE Match Fuel Pressure Sensor Designed for compatible Porsche applications, the sensor monitors fuel pressure within the applicable fuel delivery system and sends this information to the engine control unit (ECU).

Fits:

• Porsche 957 Cayenne 3.0L Diesel 2007-10

Diagram Ref No 3

Correct fuel pressure is essential for accurate fuel delivery. The ECU uses pressure information alongside data from other engine sensors to manage fuelling according to engine speed, load and operating conditions. A reliable pressure signal helps ensure that the engine receives the appropriate quantity of fuel for smooth starting, consistent performance and efficient combustion.

Fuel pressure sensors operate continuously whenever the engine is running and are exposed to pressure changes, heat and vibration. Over time, the sensor or its electrical connections can deteriorate, producing inaccurate, intermittent or missing pressure information.

This OE Match Fuel Pressure Sensor provides a high-quality replacement for a faulty or damaged original sensor, helping restore accurate fuel pressure feedback and correct engine-management operation.

What This Product Does:

• Monitors pressure within the applicable fuel system.
• Converts fuel pressure into an electrical signal.
• Sends fuel pressure information to the ECU.
• Helps the engine-management system regulate fuel delivery.
• Supports accurate fuelling under changing engine loads and speeds.
• Helps maintain smooth starting and engine operation.
• Contributes to consistent throttle response and performance.
• Supports efficient combustion and fuel management.
• Helps the ECU identify abnormal fuel pressure conditions.
• Supports engine-management diagnostics.
• Replaces an inaccurate, intermittent or failed pressure sensor.
• Provides an OE Match alternative for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Check engine or engine-management warning light.
• Fuel pressure-related diagnostic trouble codes.
• Difficult or extended engine starting.
• Engine cranking without starting.
• Rough or unstable idle.
• Engine hesitation during acceleration.
• Poor throttle response.
• Reduced engine performance.
• Intermittent loss of power.
• Engine stalling.
• Uneven or inconsistent engine operation.
• Increased fuel consumption.
• Engine operating in a reduced-power or protective mode.
• Implausible or fluctuating fuel pressure readings during diagnostic testing.
• Damaged sensor wiring or electrical connector.  

Why Replacement Matters:

• Accurate fuel pressure information is important because the engine-management system needs to know whether the required fuel pressure is available before it can correctly control fuel delivery.
• If the sensor provides inaccurate information, the ECU may make inappropriate fuelling corrections or register a fuel-system fault. This can lead to poor starting, hesitation, reduced performance or inconsistent engine operation.
• An intermittent sensor can be particularly troublesome because the engine may operate normally under some conditions and then suddenly develop performance problems as the signal becomes unstable.
• A completely failed sensor may cause the ECU to use substitute values or enter a protective operating strategy. This can illuminate the engine-management warning light and potentially restrict engine performance.
• It is also important that genuine fuel pressure problems are identified correctly. Reliable sensor information helps distinguish between an electronic monitoring fault and an actual problem with the fuel pump, pressure regulation or delivery system.
• Replacing a defective component with this OE Match Fuel Pressure Sensor helps restore accurate fuel pressure feedback, consistent fuel delivery and dependable engine-management performance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95560623040

The product you are viewing cross references to these numbers

Oil Level Sender.

Restore accurate engine oil level monitoring with this OE Match Oil Level Sender. Designed for compatible Porsche applications, the oil level sender monitors the quantity of oil within the engine and communicates this information to the vehicle's electronic monitoring or instrument system.

Fits:

• Porsche 957 Cayenne S / GTS 4.8L 2007-10
• Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
• Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
• Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
• Porsche 970.1 Panamera S V8 4.8L 2009-13
• Porsche 970.1 Panamera 4S V8 4.8L 2009-13
• Porsche 970.1 Panamera GTS V8 4.8L 2011-13
• Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
• Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13 

 
Diagram Ref No 19

Maintaining the correct engine oil level is essential for lubrication, cooling and protection of internal engine components. The oil level sender allows the vehicle to provide the driver with an indication of oil level and, where applicable, a warning when the quantity falls outside the expected range.

Over time, an oil level sender can deteriorate through repeated heat cycles, vibration, oil contamination, electrical faults or damage to its wiring and connector. A defective sender may produce inaccurate or intermittent readings, trigger warning messages despite the oil being correctly filled, or fail to identify a genuine low-oil condition.

This OE Match Oil Level Sender provides a high-quality replacement for a faulty or damaged original sender, helping restore dependable electronic oil level monitoring.

What This Product Does:

• Monitors the engine oil level.
• Provides oil level information to the vehicle's electronic system.
• Supports the dashboard or instrument oil level display where applicable.
• Helps identify when engine oil quantity is too low.
• Supports accurate monitoring between routine manual oil checks.
• Helps alert the driver when oil level requires attention.
• Provides information used by the vehicle's oil monitoring system.
• Replaces an inaccurate, intermittent or failed sender.
• Helps eliminate false oil level warnings when sensor failure is the cause.
• Provides an OE Match alternative for compatible Porsche applications.  
  
  

Symptoms Of Wear Or Failure:

• Incorrect engine oil level displayed.
• Low oil warning despite the engine having the correct oil quantity.
• Oil level display showing full when the level is actually low.
• Oil level reading stuck at one value.
• Intermittent or fluctuating oil level readings.
• Oil level measurement unavailable on the instrument display.
• Implausible oil level readings.
• Engine oil level sensor-related warning messages.
• Relevant diagnostic fault codes.
• Warning returning shortly after the oil level has been correctly adjusted.
• Damaged sender wiring or electrical connector.
• Oil contamination or deterioration around the sender connection.
• Physical damage discovered during engine servicing.  

Why Replacement Matters:

• Correct engine oil quantity is critical to engine reliability. Engine oil lubricates bearings, camshafts and numerous other moving components while also contributing to heat management and internal cleanliness.
• A faulty oil level sender can create two distinct problems. If it reports a falsely low level, the driver may unnecessarily add oil. Overfilling an engine can itself cause problems, including oil aeration, increased crankcase pressure and potential contamination of intake or emissions systems depending on the engine design.
• More importantly, a sender that incorrectly reports an adequate level may prevent the driver from recognising genuine oil loss or consumption.
• Operating an engine with insufficient oil can reduce lubrication and increase component temperatures. In severe cases, low oil quantity can contribute to accelerated wear or major internal engine damage.
• It is also important to distinguish oil level from oil pressure. This sender monitors oil quantity; it does not replace the engine's oil pressure monitoring system. An oil pressure warning should be treated as a separate and potentially urgent issue.
• Replacing a defective component with this OE Match Oil Level Sender helps restore trustworthy oil level information and allows the driver to maintain the correct engine oil quantity with greater confidence.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94860616002

The product you are viewing cross references to these numbers

Coolant Bottle Level Sensor. 

Maintain accurate coolant level monitoring and dependable cooling-system warnings with this OE MATCH Coolant Bottle Level Sensor. Designed for compatible Porsche applications, this sensor monitors the coolant level within the expansion/header tank and provides the vehicle's electronic systems with information when the coolant falls below the intended level.

Fits:

• Porsche Boxster 987 2.7L 2005-08/08
• Porsche Boxster 987 S 3.4L 2005-08/08
• Porsche Boxster 987 MKII 2.9L 2009-12
• Porsche Boxster S 987 MKII 3.4L 2009-12
• Porsche Cayman 2.7L 987C 2006-08
• Porsche Cayman S 3.4L 987C 2005-08
• Porsche Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12  

Diagram Ref No 2

Maintaining sufficient coolant is essential for controlling engine temperature. A low coolant level can reduce the cooling system's ability to transfer heat effectively and may allow air to enter the system, potentially resulting in unstable temperatures or overheating.

The coolant level sensor provides an important early warning so that coolant loss can be investigated before it develops into a more serious cooling-system problem. Over time, the sensor can become unreliable through age, repeated heat cycles, contamination, electrical faults or damage to its connector and wiring.

What This Product Does:

• Monitors coolant level within the expansion/header tank.
• Detects when coolant falls below the intended level.
• Sends coolant level information to the vehicle's monitoring system.
• Helps trigger a low coolant warning when required.
• Provides early indication of coolant loss.
• Helps the driver identify a potential cooling-system problem.
• Supports reliable engine temperature management.
• Helps prevent low coolant conditions from going unnoticed.
• Works as part of the vehicle's cooling-system warning arrangement.
• Replaces a damaged, inaccurate or failed coolant level sensor.
• Restores correct coolant level monitoring on compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Low coolant warning despite the coolant being at the correct level.
• Coolant warning appearing intermittently.
• Warning remaining illuminated after the coolant level has been corrected.
• No low coolant warning when the level is genuinely low.
• Implausible coolant level information during diagnostic testing.
• Coolant level sensor-related fault codes where applicable.
• Warning appearing particularly when cornering or accelerating despite adequate coolant.
• Corroded or contaminated electrical connections.
• Damaged sensor wiring.
• Cracked or damaged electrical connector.
• Physical deterioration of the sensor.
• Sensor problems discovered during expansion tank servicing or replacement.  

Why Replacement Matters:

• The coolant level sensor provides an important warning when the cooling system begins losing coolant. A faulty sensor can create problems in two different ways.
• If the sensor incorrectly reports a low level, it may produce persistent or intermittent dashboard warnings even when the cooling system is correctly filled.
• More importantly, a sensor that fails to detect an actual low coolant condition can prevent the driver from receiving an early warning.
• Coolant loss may result from a leaking hose, radiator, expansion tank, water pump, seal or another cooling-system component. Continuing to drive with insufficient coolant can lead to poor circulation, air entering the cooling circuit and eventual engine overheating.
• Severe overheating can cause expensive engine damage, including deterioration of seals and gaskets and damage to major engine components.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98764150300

The product you are viewing cross references to these numbers

RIGHT Lambda Oxygen Sensor, BEFORE Catalytic Converter.

Restore accurate fuel-mixture monitoring and dependable engine-management performance with this OE Match Right Lambda Oxygen Sensor. Designed for compatible Porsche applications, this sensor is specified for the RIGHT side, BEFORE the catalytic converter.

Fits: 

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17  

Diagram Ref No 18

Also known as an upstream, pre-cat or O2 sensor, the lambda sensor measures the oxygen content remaining in the exhaust gases after combustion. This information is sent to the engine control unit (ECU), allowing it to determine whether the engine is operating with a rich or lean air-fuel mixture and make precise adjustments to fuel delivery.

Because this sensor operates before the catalytic converter, it plays an important role in closed-loop fuel control. Accurate readings help maintain efficient combustion, responsive engine performance, appropriate fuel consumption and controlled exhaust emissions.

Lambda sensors operate in a particularly demanding environment, exposed to extreme exhaust temperatures, vibration and combustion deposits. Over time, the sensing element can become contaminated or slow to respond, while the heater circuit, wiring or electrical connector can also deteriorate.

This OE Match Right Lambda Oxygen Sensor provides a high-quality replacement for a worn, contaminated, damaged or failed original sensor.

What This Product Does:

• Is designed for the RIGHT-side application.
• Is positioned BEFORE the catalytic converter.
• Measures oxygen content in the exhaust gases.
• Sends exhaust oxygen information to the ECU.
• Helps determine whether the air-fuel mixture is rich or lean.
• Allows the ECU to make continuous fuel-delivery corrections.
• Supports accurate closed-loop mixture control.
• Helps maintain efficient combustion.
• Supports smooth throttle response and engine performance.
• Helps optimise fuel consumption.
• Contributes to correct exhaust emissions.
• Helps protect the catalytic converter from problems associated with incorrect fuelling.
• Replaces a slow, contaminated, damaged or failed lambda sensor.
• Provides an OE Match alternative for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Check engine or engine-management warning light.
• Lambda or oxygen sensor-related diagnostic fault codes.
• Bank-specific rich or lean mixture fault codes.
• Increased fuel consumption.
• Rough or unstable idle.
• Hesitation during acceleration.
• Poor throttle response.
• Reduced engine performance.
• Engine running excessively rich or lean.
• Strong fuel smell from the exhaust.
• Increased exhaust emissions.
• Failed emissions testing where applicable.
• Intermittent engine-management warnings.
• Slow sensor response during diagnostic testing.
• Implausible or inconsistent lambda readings.
• Oxygen sensor heater circuit faults.
• Damaged wiring, insulation or electrical connectors.  

Why Replacement Matters:

• The pre-catalytic converter lambda sensor provides essential feedback for controlling the engine's air-fuel mixture. The ECU relies on this information to make continual fuel-delivery adjustments as engine speed, load and operating conditions change.
• As a lambda sensor ages, its response may become progressively slower or less accurate without immediately failing completely. This can result in less precise mixture control and contribute to increased fuel consumption, reduced performance, unstable running and higher emissions.
• Incorrect fuelling can also affect the catalytic converter. An excessively rich mixture may allow unburned fuel to enter the exhaust system, increasing catalyst temperatures and potentially shortening catalytic converter life.
• A completely failed sensor may cause the ECU to substitute calculated values or adopt a fallback operating strategy. The engine may remain driveable, but efficiency, emissions and performance can be compromised.
• Because it is specified for the right-side, pre-catalytic converter position, correct sensor location is particularly important on engines equipped with multiple exhaust banks and lambda sensors.
• Replacing a defective sensor with this OE Match Right Lambda Oxygen Sensor helps restore accurate mixture feedback, efficient combustion and dependable engine-management performance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

958906262G

The product you are viewing cross references to these numbers

Lambda Oxygen Sensor, BEFORE Catalytic Converter.
Restore accurate air-fuel mixture monitoring and dependable engine-management performance with this OE Match Lambda Oxygen Sensor. Designed for compatible Porsche applications, this sensor is positioned before the catalytic converter, where it measures oxygen levels in the exhaust gases immediately after combustion.  

Fits:

• Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
• Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17  

Diagram Ref No 7

Also known as an upstream, pre-cat or O2 sensor, the lambda sensor provides essential feedback to the engine control unit (ECU). By measuring residual oxygen in the exhaust stream, it enables the ECU to determine whether the engine is operating with a rich or lean air-fuel mixture and make continuous corrections to fuel delivery.

As a pre-catalytic converter sensor, it has an important role in closed-loop fuel control. Accurate readings help maintain efficient combustion, responsive performance, appropriate fuel consumption and controlled exhaust emissions.

Lambda sensors operate under demanding conditions and are continually exposed to extreme exhaust temperatures, vibration and combustion deposits. With age, the sensing element can become contaminated or slow to respond, while the internal heater, wiring or electrical connections may also deteriorate.

This OE Match Lambda Oxygen Sensor provides a high-quality replacement for a slow, contaminated, damaged or failed original sensor.

What This Product Does:

• Measures oxygen content within the exhaust gases.
• Is designed for installation before the catalytic converter.
• Sends exhaust oxygen information to the ECU.
• Helps determine whether the engine is running rich or lean.
• Allows the ECU to make accurate fuel-delivery adjustments.
• Supports closed-loop air-fuel mixture control.
• Helps maintain efficient combustion.
• Contributes to smooth and responsive engine performance.
• Helps optimise fuel consumption.
• Supports correct exhaust emissions.
• Helps protect the catalytic converter from problems caused by incorrect fuelling.
• Replaces a worn, contaminated or failed oxygen sensor.
• Provides an OE Match alternative for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Check engine or engine-management warning light.
• Lambda or oxygen sensor-related diagnostic fault codes.
• Rich or lean mixture fault codes.
• Increased fuel consumption.
• Rough or unstable idle.
• Hesitation during acceleration.
• Poor throttle response.
• Reduced engine performance.
• Engine running excessively rich or lean.
• Strong fuel smell from the exhaust.
• Increased exhaust emissions.
• Failed emissions testing where applicable.
• Intermittent engine-management warnings.
• Slow sensor response shown by diagnostic equipment.
• Implausible or inconsistent lambda readings.
• Oxygen sensor heater circuit faults.
• Damaged wiring, insulation or electrical connectors.  

Why Replacement Matters:

• The lambda sensor positioned before the catalytic converter is a key feedback component within the engine-management system. The ECU relies on its signal to continually fine-tune the amount of fuel delivered to the engine.
• As a lambda sensor ages, it may become slower to react to changes in exhaust oxygen content. A sensor does not necessarily have to fail completely to affect engine operation; delayed or inaccurate readings can result in less precise fuel corrections.
• Poor mixture control can contribute to increased fuel consumption, reduced performance, unstable running and higher exhaust emissions.
• Incorrect fuelling can also place additional stress on the catalytic converter. If the engine runs excessively rich, unburned fuel can enter the exhaust system and increase catalyst temperatures, potentially shortening catalytic converter service life.
• A failed sensor may cause the ECU to use substitute values or adopt a fallback strategy. Although the engine may continue to run, fuel efficiency, emissions and performance may be compromised.
• Replacing a defective sensor with this OE Match Lambda Oxygen Sensor helps restore accurate mixture feedback, efficient combustion and dependable engine-management operation.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

958906262F

The product you are viewing cross references to these numbers

Lambda Oxygen Sensor, BEFORE Catalytic Converter.

Restore accurate air-fuel mixture monitoring and efficient engine-management operation with this OE Match Lambda Oxygen Sensor. Designed for compatible Porsche applications, this sensor is installed before the catalytic converter, where it monitors oxygen levels in the exhaust gases directly after combustion.

Fits:

• Porsche 955 Cayenne Turbo 4.5L 2003-06
• Porsche 955 Cayenne Turbo S 4.5L 2006>>

Diagram Ref No 6

Also known as an upstream, pre-cat or O2 sensor, the lambda sensor provides essential feedback to the engine control unit (ECU). By measuring the amount of oxygen remaining in the exhaust, the sensor enables the ECU to determine whether the engine is operating with a rich or lean air-fuel mixture and make the necessary fuel-delivery corrections.

Because this sensor operates upstream of the catalytic converter, it plays a particularly important role in closed-loop fuel control. Accurate readings contribute to efficient combustion, responsive engine performance, fuel economy and emissions control.

Continuous exposure to high exhaust temperatures, vibration and combustion deposits can cause lambda sensors to deteriorate over time. A worn sensor may become slow to respond, provide inaccurate readings or fail completely.

This OE Match Lambda Oxygen Sensor provides a high-quality replacement for a worn, contaminated or defective pre-catalytic converter sensor.

What This Product Does:

• Measures oxygen content within the exhaust gases.
• Is designed for installation before the catalytic converter.
• Sends exhaust oxygen information to the ECU.
• Helps determine whether the air-fuel mixture is rich or lean.
• Allows the ECU to continuously adjust fuel delivery.
• Supports accurate closed-loop fuel control.
• Helps maintain efficient combustion.
• Contributes to consistent throttle response and engine performance.
• Helps optimise fuel consumption.
• Supports correct exhaust emissions.
• Helps protect the catalytic converter from problems caused by incorrect fuelling.
• Replaces a slow, contaminated, damaged or failed oxygen sensor.
• Provides an OE Match replacement for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Check engine or engine-management warning light.
• Lambda or oxygen sensor-related diagnostic fault codes.
• Rich or lean mixture fault codes. Increased fuel consumption.
• Rough or unstable idle. Engine hesitation or stumbling.
• Poor throttle response. Reduced engine performance.
• Engine running excessively rich or lean.
• Strong fuel smell from the exhaust.
• Increased exhaust emissions.
• Failed emissions testing where applicable.
• Intermittent engine-management faults.
• Slow sensor response visible through diagnostic equipment.
• Implausible or inconsistent oxygen sensor readings.
• Sensor heater circuit faults where applicable.
• Damaged wiring or electrical connectors.  

Why Replacement Matters:

• The pre-catalytic converter lambda sensor is one of the engine-management system's primary tools for controlling the air-fuel mixture.
• When operating correctly, the sensor provides rapid feedback that allows the ECU to continually adjust fuel delivery according to actual combustion conditions. If the sensor becomes slow or inaccurate, these adjustments may no longer be as precise.
• Poor mixture control can result in increased fuel consumption, reduced performance and higher emissions. In some cases, the engine may continue to operate relatively normally while efficiency gradually deteriorates.
• Incorrect fuelling can also place the catalytic converter at risk. An excessively rich mixture may allow unburned fuel to enter the exhaust system, increasing catalyst temperatures and potentially contributing to premature catalytic converter damage.
• A completely failed sensor may cause the ECU to use substitute values or a more conservative operating strategy, potentially illuminating the engine-management warning light and reducing overall efficiency.
• Replacing a defective sensor with this OE Match Lambda Oxygen Sensor helps restore accurate mixture feedback, efficient combustion and dependable engine-management operation.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

958906262L

The product you are viewing cross references to these numbers

RIGHT Lambda Sensor, BEFORE Catalytic Converter.
The OE MATCH RIGHT Lambda Sensor, Before Catalytic Converter is a precision-engineered engine management and emissions control sensor designed to monitor oxygen levels in the exhaust gases before they enter the catalytic converter on the left-hand exhaust bank. Also known as an upstream oxygen sensor or pre-catalyst lambda sensor, it plays a crucial role in maintaining the correct air-fuel mixture for efficient combustion and optimal engine performance.

Fits:

• Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
• Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17

  
Diagram Ref No 7

The sensor continuously measures the oxygen content in the exhaust stream and sends real-time data to the engine control unit (ECU). Using this information, the ECU adjusts fuel injection and ignition parameters to maximise fuel efficiency, reduce emissions, and ensure smooth engine operation. This sensor delivers accurate readings, fast response times, and long-term reliability.

What This Product Does:

• Monitors oxygen levels in exhaust gases before the catalytic converter
• Provides real-time feedback to the engine control unit (ECU)
• Helps regulate the air-fuel mixture for efficient combustion
• Supports engine performance and throttle response
• Improves fuel economy and emissions control
• Ensures efficient catalytic converter operation

Symptoms Of Wear Or Failure:

• Check engine light illumination
• Poor fuel economy
• Rough idle or unstable engine operation
• Reduced engine power and acceleration
• Engine hesitation or sluggish throttle response
• Increased exhaust emissions
• Failed emissions or MOT tests
• Oxygen sensor-related fault codes stored in the ECU

Why Replacement Matters:

• Restores accurate air-fuel ratio monitoring
• Improves fuel economy and combustion efficiency
• Enhances engine performance and throttle response
• Reduces harmful exhaust emissions
• Supports proper catalytic converter function and longevity
• Prevents unnecessary engine management warning lights
• Helps maintain emissions compliance and MOT readiness
• Ensures reliable communication between the sensor and ECU for optimum engine operation

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94860613401

The product you are viewing cross references to these numbers

Lambda Oxygen Sensor, BEFORE Catalytic Converter.
Restore accurate air-fuel mixture monitoring and dependable engine-management operation with this OE Match Lambda Oxygen Sensor. Designed for compatible Porsche applications, this sensor is installed before the catalytic converter, where it measures the oxygen content of the exhaust gases leaving the engine.  
 
Fits:

Diagram Ref No 6

Also known as an upstream, pre-cat or O2 sensor, the lambda sensor provides critical feedback to the engine control unit (ECU). By monitoring residual oxygen in the exhaust stream, it allows the ECU to determine whether the engine is running richer or leaner than intended and make continuous adjustments to fuel delivery.

Accurate pre-catalyst lambda sensor information is important for maintaining efficient combustion, responsive performance, fuel economy and emissions control. Unlike a downstream sensor, which is commonly used to monitor catalytic converter performance, the before-catalytic-converter sensor has a direct role in fuel-mixture regulation.

Lambda sensors operate in an extremely demanding environment and are continually exposed to high exhaust temperatures and combustion by-products. Age, contamination, wiring damage or deterioration of the sensing element can eventually cause slow, inaccurate or failed readings.

This OE Match Lambda Oxygen Sensor provides a high-quality replacement for a worn or defective pre-cat sensor, helping restore accurate mixture feedback and correct engine-management operation.

What This Product Does:

• Measures oxygen content in the exhaust gases.
• Is positioned before the catalytic converter.
• Provides air-fuel mixture feedback to the ECU.
• Helps the ECU determine whether combustion is rich or lean.
• Allows continuous adjustment of fuel delivery.
• Supports accurate closed-loop fuel control.
• Helps maintain efficient combustion.
• Contributes to consistent engine performance and throttle response.
• Helps optimise fuel consumption.
• Supports correct operation of the emissions-control system.
• Helps protect the catalytic converter from problems associated with incorrect fuelling.
• Replaces a slow, contaminated, damaged or failed oxygen sensor.
• Provides an OE Match replacement for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Check engine or engine-management warning light.
• Oxygen sensor or mixture-related diagnostic fault codes.
• Increased fuel consumption.
• Rough or unstable idle.
• Engine hesitation. Poor throttle response.
• Reduced engine performance.
• Engine running excessively rich.
• Engine running excessively lean.
• Increased exhaust emissions.
• Strong fuel smell from the exhaust.
• Failed emissions testing where applicable.
• Intermittent engine-management faults.
• Slow or implausible lambda sensor readings during diagnostic testing.
• Damaged sensor wiring or electrical connector.
• Heater circuit-related sensor faults where applicable.  

Why Replacement Matters:

• The pre-catalytic converter lambda sensor is a key feedback device for the engine's fuel-management system. When operating correctly, it allows the ECU to continually fine-tune the air-fuel mixture as driving conditions change.
• As a lambda sensor ages, its response can become slower even before it fails completely. Delayed or inaccurate feedback may cause the ECU to make less precise fuelling corrections, potentially resulting in increased fuel consumption, reduced performance and higher emissions.
• Incorrect fuelling can also affect the catalytic converter. An excessively rich mixture may allow unburned fuel to enter the exhaust, potentially causing the catalyst to operate at abnormally high temperatures. Persistent lean-running conditions can also contribute to poor engine operation and increased combustion temperatures.
• A failed sensor may cause the ECU to rely on substitute values or an alternative control strategy. While the vehicle may continue to operate, performance, efficiency and emissions can be compromised.
• Replacing a defective component with this OE Match Pre-Catalytic Converter Lambda Oxygen Sensor helps restore accurate mixture feedback, efficient combustion and dependable engine-management operation.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94860613102

The product you are viewing cross references to these numbers

LEFT Lambda Sensor, BEFORE Catalytic Converter.

The OE MATCH LEFT Lambda Sensor, Before Catalytic Converter is a precision-engineered engine management and emissions control sensor designed to monitor oxygen levels in the exhaust gases before they enter the catalytic converter on the left-hand exhaust bank. Also known as an upstream oxygen sensor or pre-catalyst lambda sensor, it plays a crucial role in maintaining the correct air-fuel mixture for efficient combustion and optimal engine performance.

Fits:

• Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
• Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17

  
Diagram Ref No 7

The OE MATCH sensor continuously measures the oxygen content in the exhaust stream and sends real-time data to the engine control unit (ECU). Using this information, the ECU adjusts fuel injection and ignition parameters to maximise fuel efficiency, reduce emissions, and ensure smooth engine operation. This sensor delivers accurate readings, fast response times, and long-term reliability.

What This Product Does:

• Monitors oxygen levels in exhaust gases before the catalytic converter
• Provides real-time feedback to the engine control unit (ECU)
• Helps regulate the air-fuel mixture for efficient combustion
• Supports engine performance and throttle response
• Improves fuel economy and emissions control
• Ensures efficient catalytic converter operation

Symptoms Of Wear Or Failure:

• Check engine light illumination
• Poor fuel economy
• Rough idle or unstable engine operation
• Reduced engine power and acceleration
• Engine hesitation or sluggish throttle response
• Increased exhaust emissions
• Failed emissions or MOT tests
• Oxygen sensor-related fault codes stored in the ECU

Why Replacement Matters:

• Restores accurate air-fuel ratio monitoring
• Improves fuel economy and combustion efficiency
• Enhances engine performance and throttle response
• Reduces harmful exhaust emissions
• Supports proper catalytic converter function and longevity
• Prevents unnecessary engine management warning lights
• Helps maintain emissions compliance and MOT readiness
• Ensures reliable communication between the sensor and ECU for optimum engine operation

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94860613302

The product you are viewing cross references to these numbers

Boost Pressure Sensor.

The Boost Pressure Sensor is a OE MATCH Porsche 997.2 Turbo engine management component designed to monitor the pressure within the intake and turbocharging system. By continuously measuring boost pressure and transmitting accurate data to the engine control unit (ECU), this sensor helps optimise turbocharger performance, fuel delivery, ignition timing, and overall engine efficiency.

Fits:

• Porsche 997 MKII Turbo 2010-13
• Porsche 997 MKII GT2 RS 2011-13

Diagram Ref No 9

This OE MATCH sensor is engineered for precise pressure measurement, fast response times, and reliable operation in high-temperature, high-pressure engine environments. It plays a critical role in maintaining performance, drivability, fuel economy, and emissions compliance in turbocharged Porsche engines.

What This Product Does:

• Measures intake and boost pressure within the engine system
• Provides real-time pressure data to the ECU
• Helps regulate turbocharger performance and boost levels
• Supports accurate fuel injection and ignition timing adjustments
• Maintains optimal engine efficiency and power output
• Contributes to emissions control and engine protection strategies

Symptoms Of Wear Or Failure:

• Reduced engine power or limp-home mode activation
• Poor turbocharger performance or incorrect boost levels
• Engine hesitation during acceleration Increased fuel consumption
• Check engine light illumination Boost pressure-related fault codes
• Erratic engine performance or inconsistent throttle response
• Rough running or reduced drivability

Why Replacement Matters:

• Restores accurate boost pressure monitoring
• Ensures proper turbocharger control and operation
• Improves engine performance and throttle response
• Maintains optimal fuel economy and emissions performance
• Prevents unnecessary strain on the turbocharging system
• Helps avoid limp mode activation and engine management faults
• Supports reliable communication between engine components and the ECU
• Maintains the performance and driving characteristics expected of a Porsche vehicle

Related reference numbers
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99760618000

The product you are viewing cross references to these numbers

Air Intake Temperature Sensor.

The OE MATCH Air Intake Temperature Sensor is a engine management sensor, designed to measure the temperature of the air entering the engine. This information is continuously transmitted to the engine control unit (ECU), allowing precise adjustments to fuel injection, ignition timing, and air-fuel mixture calculations.

Fits:

• Porsche 928S2 4.7L 1984-86

Diagram Ref No 7

By accurately monitoring intake air temperature, the sensor helps optimise engine performance, fuel efficiency, emissions control, and overall drivability. It is engineered for reliable operation, precise readings, and long-term durability in demanding engine bay environments.

What This Product Does:

• Measures the temperature of incoming intake air
• Sends temperature data to the engine control unit (ECU)
• Helps calculate the correct air-fuel mixture
• Supports accurate fuel injection and ignition timing adjustments
• Optimises engine performance and fuel economy
• Contributes to emissions control and efficient combustion

Symptoms Of Wear Or Failure:

• Check engine light illumination
• Poor fuel economy
• Rough idle or inconsistent engine operation
• Reduced engine performance or throttle response
• Hard starting in hot or cold conditions
• Engine hesitation during acceleration
• Incorrect air-fuel mixture calculations
• Sensor-related fault codes stored in the ECU

Why Replacement Matters:

• Restores accurate intake air temperature readings
• Ensures correct air-fuel mixture calculations
• Improves fuel economy and engine responsiveness
• Supports smooth engine operation and drivability
• Helps maintain emissions compliance
• Prevents unnecessary fuel consumption and performance loss
• Supports reliable communication between the sensor and ECU
• Maintains the efficiency and reliability of the engine management system

Related reference numbers
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92860614300

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