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Lambda Sensors / Probes

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DISPLAYING 1 to 3 (of 3 products)
95860613420/1
Product Information
Product Information

Lambda oxygen sensor Right - BEFORE Catalytic converter. 

oematch

Fits:
Porsche 958 Cayenne Hybrid - 2010 to 2017

For cars with Option Codes
D19 - 6-cyl spark ignition engine, 3.0lt / 245kW (Hybrid)
7GB - Emissions concept ULEV2

Click 'Zoom in' for large parts diagram.
Diagram ref no 14



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95860613420
95860613420

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95860613301
Product Information
Product Information
LEFT Lambda Sensor, BEFORE Catalytic Converter.

Restore accurate air-fuel mixture monitoring and dependable engine-management operation with this LEFT Lambda Sensor, part number 95860613301. Designed for compatible Porsche applications, this sensor is fitted on the LEFT side BEFORE the catalytic converter, where it monitors oxygen levels in the exhaust gases leaving the engine.

Fits:

  • Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
  • Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
  • Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16  

Diagram Ref No 13

Also known as an
oxygen sensor, O2 sensor or lambda probe, the pre-catalyst sensor provides the engine control unit (ECU) with important information about combustion conditions. By measuring residual oxygen in the exhaust gases, the sensor allows the ECU to determine whether the engine is operating richer or leaner than intended.

The ECU uses this feedback to make appropriate adjustments to fuel delivery. Accurate lambda control contributes to smooth engine performance, efficient fuel consumption, controlled emissions and effective catalytic converter operation.

Because the sensor operates directly in the hot exhaust stream, it is continually exposed to extreme temperatures, vibration, moisture and combustion deposits. Over time, the sensing element can become contaminated or slow to respond, while the internal heater, wiring and electrical connections may also deteriorate.

Replacing a confirmed faulty LEFT Lambda Sensor 95860613301 helps restore accurate mixture feedback and reliable engine-management operation.

What This Product Does:

  • Measures oxygen content in the exhaust gases.
  • Fits the LEFT-side exhaust system where specified.
  • Operates BEFORE the catalytic converter.
  • Sends exhaust-mixture information to the ECU.
  • Helps determine whether combustion is rich or lean.
  • Supports closed-loop fuel control.
  • Allows the ECU to make appropriate fuel corrections.
  • Helps maintain the intended air-fuel mixture.
  • Supports smooth idle and consistent engine performance.
  • Helps maintain responsive acceleration.
  • Contributes to efficient fuel consumption.
  • Helps control exhaust emissions.
  • Supports effective catalytic converter operation.
  • Provides information used for engine diagnostics.
  • Replaces a slow, inaccurate, contaminated or failed lambda sensor.  

Symptoms Of Wear Or Failure:
  • Check engine or engine-management warning light.
  • Lambda or oxygen sensor fault codes.
  • Left-bank oxygen sensor faults.
  • Rich or lean mixture fault codes.
  • Increased fuel consumption.
  • Rough or unstable idle.
  • Engine hesitation.
  • Poor throttle response.
  • Reduced engine performance.
  • Uneven engine operation.
  • Engine misfires.
  • Difficult starting.
  • Increased exhaust emissions.
  • Failed emissions test.
  • Strong fuel smell from the exhaust.
  • Slow lambda response during diagnostic testing.
  • Implausible oxygen sensor readings.
  • Intermittent sensor operation.
  • Oxygen sensor heater circuit fault.
  • Damaged or heat-affected wiring.
  • Corroded or damaged electrical connector.  

Why Replacement Matters:
  • The before-catalyst lambda sensor plays an important role in maintaining the correct engine air-fuel mixture.
  • Once the engine reaches the appropriate operating conditions, the ECU can use lambda feedback to continuously refine fuel delivery. The sensor needs to react accurately as engine load, speed and operating conditions change.
  • A worn lambda sensor does not always stop functioning completely. Instead, it may become progressively slower or less accurate.
  • Replacing a confirmed faulty LEFT Lambda Sensor 95860613301 helps restore accurate exhaust feedback and allows the ECU to manage fuelling correctly.



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

95860613301
95860613301
95860613300

The product you are viewing cross references to these numbers
95860613301/1
Product Information
Product Information
LEFT Lambda Sensor, BEFORE Catalytic Converter.

Restore accurate air-fuel mixture monitoring and dependable engine-management operation with this OE Match LEFT Lambda Sensor. Designed for compatible Porsche applications, this sensor is fitted on the LEFT side BEFORE the catalytic converter, where it measures oxygen levels in the exhaust gases leaving the engine.

Fits:

  • Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
  • Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
  • Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16  

Diagram Ref No 13

Also known as an oxygen sensor, O2 sensor or lambda probe, the pre-catalyst lambda sensor provides the engine control unit (ECU) with essential information about combustion conditions. By measuring the amount of residual oxygen in the exhaust, it helps the ECU determine whether the engine is operating richer or leaner than intended.

The ECU can use this feedback to adjust fuel delivery, helping maintain the correct air-fuel mixture under changing engine speeds, loads and operating conditions. Accurate lambda sensor operation contributes to efficient combustion, smooth performance, controlled emissions and effective catalytic converter operation.

Lambda sensors work in an extremely demanding environment and are continually exposed to high exhaust temperatures, vibration, moisture, combustion deposits and repeated thermal cycling. Over time, the sensing element can become contaminated or slow to respond, while the heater circuit, wiring and electrical connections may also deteriorate.

This OE Match LEFT Lambda Sensor provides a high-quality replacement for a confirmed faulty, contaminated or slow-response pre-catalyst sensor.


What This Product Does:

  • Measures oxygen content in the exhaust gases.
  • Fits the LEFT-side exhaust system where specified.
  • Operates BEFORE the catalytic converter.
  • Sends exhaust-mixture information to the ECU.
  • Helps determine whether combustion is rich or lean.
  • Supports closed-loop fuel control.
  • Allows the ECU to make appropriate fuel corrections.
  • Helps maintain the intended air-fuel mixture.
  • Supports smooth idle and consistent engine performance.
  • Helps maintain responsive acceleration.
  • Contributes to efficient fuel consumption.
  • Helps control exhaust emissions.
  • Supports effective catalytic converter operation.
  • Provides information used for engine diagnostics.
  • Replaces a slow, inaccurate, contaminated or failed lambda sensor.  

Symptoms Of Wear Or Failure:
  • Check engine or engine-management warning light.
  • Lambda or oxygen sensor fault codes.
  • Left-bank oxygen sensor faults.
  • Rich or lean mixture fault codes.
  • Increased fuel consumption.
  • Rough or unstable idle.
  • Engine hesitation.
  • Poor throttle response.
  • Reduced engine performance.
  • Uneven engine operation.
  • Engine misfires.
  • Difficult starting.
  • Increased exhaust emissions.
  • Failed emissions test.
  • Strong fuel smell from the exhaust.
  • Slow lambda response during diagnostic testing.
  • Implausible oxygen sensor readings.
  • Intermittent sensor operation.
  • Oxygen sensor heater circuit fault.
  • Damaged or heat-affected wiring.
  • Corroded or damaged electrical connector.  

Why Replacement Matters:
  • The before-catalyst lambda sensor plays an important role in maintaining the correct engine air-fuel mixture.
  • Once the engine reaches the appropriate operating conditions, the ECU can use lambda feedback to continuously refine fuel delivery. The sensor needs to react accurately as engine load, speed and operating conditions change.
  • A worn lambda sensor does not always stop functioning completely. Instead, it may become progressively slower or less accurate.



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

95860613301
95860613301
95860613300

The product you are viewing cross references to these numbers
DISPLAYING 1 to 3 (of 3 products)
Also found on these pages
About Lambda Sensors / Probes

Lambda Sensors / Oxygen Probes | Precision Fuel Control & Emissions Performance

Lambda sensors (also known as oxygen sensors or O2 probes) are vital components in your Porsche’s exhaust and fuel management system. These precision sensors monitor the level of oxygen in the exhaust gases and send feedback to the engine control unit (ECU) to maintain the ideal air-fuel ratio. This ensures maximum performance, fuel efficiency, and reduced emissions — essential for both road and track use.

At Design911, we supply a wide range of high-quality replacement lambda sensors specifically designed for Porsche models, including 911, Cayman, Boxster, Panamera, and Macan. Each sensor is built to manufacturer-level standards, ensuring accurate data, fast response times, and long service life even under extreme exhaust temperatures.

Whether you’re performing a maintenance service or troubleshooting an emissions issue, our lambda sensors provide reliable performance and precise air-fuel monitoring to keep your Porsche running at its best.

What Do Lambda Sensors Do?

The lambda sensor continuously measures oxygen content in the exhaust gases, allowing the ECU to adjust the fuel injection and ignition timing. This feedback loop helps the engine maintain an optimal stoichiometric mixture (14.7:1 air to fuel), which is critical for performance, economy, and emissions control.

Core Functions:

  • Monitors exhaust oxygen levels to fine-tune combustion.
  • Supports optimal air-fuel ratio for maximum efficiency.
  • Ensures proper catalytic converter operation.
  • Reduces emissions and maintains environmental compliance.
  • Improves throttle response and fuel economy.

Without a functioning lambda sensor, your engine can run rich or lean — leading to poor performance, excessive fuel use, and potential catalytic converter damage.

Why Do Lambda Sensors Fail?

Lambda sensors operate in one of the harshest environments of the vehicle — exposed to extreme heat, soot, and contaminants. Over time, they wear out and lose accuracy.

Common Causes of Failure Include:

  • Carbon or oil contamination on the sensor element.
  • Thermal shock or excessive heat exposure.
  • Wiring or connector corrosion. Silicone or fuel additive residue buildup.
  • Normal sensor aging and loss of sensitivity.

When a lambda sensor fails, you may notice increased fuel consumption, rough idle, loss of power, or a check engine light — all indicators that replacement is needed.

Why Replace Your Lambda Sensor?

Replacing a worn or faulty lambda sensor restores proper fuel-air mixture control, protects the catalytic converter, and ensures compliance with emission standards.

Key Benefits:

  • Restores fuel efficiency and power delivery. Improves engine responsiveness and idle stability.
  • Reduces harmful emissions and prevents MOT failure.
  • Protects expensive exhaust components like catalytic converters.
  • Direct-fit compatibility for Porsche models.
  • Built from high-grade materials for extended lifespan.

Replacing your lambda sensor is an easy, cost-effective way to revive performance and reliability in your Porsche’s engine system.

Highlights:

  • High-quality oxygen probes and lambda sensors for Porsche.
  • Ensures accurate air-fuel ratio and clean combustion.
  • Compatible with Porsche 911, Cayman, Boxster, Macan, Panamera and others.
  • Corrosion-resistant housings and fast-reacting elements.
  • Essential for performance, emissions control, and fuel economy.
  • Direct-fit design ensures easy installation and reliable connection.

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