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Porsche > 911 & 912 (1965-1989) > 911 1987-1989 3.2L G50 > Electrical & Relays >

Electronic Control Units

Electronic Control Units

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DISPLAYING 1 to 5 (of 5 products)
Central Locking Control Unit. Porsche 911 / 964 / 928 / 944 - 91161811301, 91161811302
3
Central Locking Control Unit. Porsche 911 / 964 / 928 / 944
Special Order item
91161811302
Product Information
Product Information
Central Locking Control Unit.

porsche

Fits:
Porsche 911 1984-89
Porsche 964 1989-90
Porsche 928 1987-90
Porsche 944 1985-90
Porsche 944 Turbo >>1991

Diagram ref no 6

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Related, superseded, cross reference or alternative numbers for comparison.

91161811302
91161811301
91161811302

The product you are viewing cross references to these numbers
ECU Porsche 911 3.2L 1986-89 *Exchange 91161811118, 0261200078, - 91161811118, 911618111LX, 0261200078, 911618111
1
ECU Porsche 911 3.2L 1986-89 *Exchange 91161811118, 0261200078,
Special Order item
911618111LX
Product Information
Product Information
exchange
ECU - Exchange product for Engine 930.20 / 930.26

porsche

PORSCHE part no.: 911.618.111.18
Bosch part no.: 0 261 200 078

Fits:
Porsche 911 3.2L 1986-89

Please note:
Reconditioned units are sold on an exchange basis, A surcharge of £2860.39.00 will be held and then refunded when the old one is returned.

    PLEASE NOTE:
  • The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
  • Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
  • Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
  • All surcharges and exchanges are subject to our terms and conditions.


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Related, superseded, cross reference or alternative numbers for comparison.

911618111LX
91161811118
911618111LX
0261200078
911618111

The product you are viewing cross references to these numbers
ECU Porsche 911 3.2L 1986-89 Bosch 0261200078 - 91161811119, 0261200078, 911618111
1
ECU Porsche 911 3.2L 1986-89 Bosch 0261200078
Special Order item
91161811119
Product Information
Product Information
ECU Porsche 911 3.2L 1986-89 Bosch 0261200078

PORSCHE part no.: 911.618.111.19
Bosch part no.: 0 261 200 078
Engine: 930.20 M240

Fits:
Porsche 911 3.2L 1986-89

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

91161811119
91161811119
0261200078
911618111

The product you are viewing cross references to these numbers
Exchange Control Unit (ECU) for Folding Cabriolet Roof for Porsche 911 3.2L / 930 / 964 / 993 1987-1998 - 91161831300, 91161831301, 99361831300, 993618313X, 993618313U
2
Exchange Control Unit (ECU) for Folding Cabriolet Roof for Porsche 911 3.2L / 930 / 964 / 993 1987-1998
Special Order item
993618313X
Product Information
Product Information
exchange Reconditioned Convertible Top Control Module (ECU). 

This control unit is supplied on an exchange basis and is no longer available as a standalone purchase. A refundable surcharge will be added to your order. Once your old control unit has been removed, returned to us, and verified as suitable for refurbishment (in accordance with the terms and conditions below), the surcharge will be refunded.  

Fits (Plug & Play):
Porsche 993 Carrera Cabriolet 1994-98 
Porsche 993 Carrera 4 Cabriolet 1995-98 
Porsche 993 Turbo Cabriolet 1995 

Fits (Modification Required):
The cabriolet top control module originally fitted to the models listed below is no longer available for purchase. It has been superseded by a later module, which was factory-fitted to 993 models. This replacement module is compatible with the models outlined below, but significant wiring modifications are required. Please refer to the attached PDF for further information. 

Porsche 911 3.2L Carrera Cabriolet 1987-89 - With Electric Folding Roof (PR 439)
Porsche 911 (930) 3.3L Turbo Cabriolet 1987-89 - With Electric Folding Roof (PR 439)

Porsche 964 Carrera Cabriolet 1990-94 
Porsche 964 Carrera 4 Cabriolet 1990-94
Porsche 964 Turbo Cabriolet 1993 

Terms & Conditions - Exchange Purchase:

The surcharge for this product will be refunded only after your existing control unit has been:

1.) Removed from your vehicle
2.) Returned to us at your own expense
3.) Accepted by the manufacturer as suitable for reconditioning

Please note that the assessment and approval of the returned unit is solely at the discretion of the manufacturer.

Refund processing times typically range from 1 to 2 weeks after the unit is received. However, in some cases, it may take up to 8 weeks for the manufacturer to complete their evaluation and issue approval.

All exchange purchases and surcharge refunds are subject to our full Terms & Conditions, available on our website.



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

993618313X
91161831300
91161831301
99361831300
993618313X
993618313U

The product you are viewing cross references to these numbers
Ignition Starter Unit CDI 6 PIN. Porsche 911 1978-89 Classic Retrofit - 93060270200, 930602702 X, 930602702X
4
Ignition Starter Unit CDI 6 PIN. Porsche 911 1978-89 Classic Retrofit
93060270200/A
Product Information
Product Information
Ignition Starter Unit CDI 6 PIN.
(Bosch Ref 0227300004)

Classic Retrofit replacement CDI+ ignition offers you bespoke modern electronics in a standard looking package. The CDI+ unit requires no modifications to the original wiring harness or vehicle metalwork and is 'plug and play'.

The CDI+ is a direct replacement for the 3 pin and 6 pin Bosch units fitted to Porsche 911's between 1969 and 1983 (and turbo models to ~1988). All CDI+ units have a 48 MHz microprocessor onboard to control ignition timing.

Advanced Unit:
The advanced unit allows the adjustment/tuning of the ignition advance curve and other features by plugging in a laptop. This can be achieved by 'overlaying' a curve on top of the distributor weights/springs curve or by locking the distributor and replacing the curve completely. Either way, you can unlock the true potential of your engine by adjusting fuelling and having the ignition curve to match.

The CDI+ has all the features of the basic unit but allow more flexibility in adjustment:
-Fully programmable ignition advance curve.
-Hard RPM limiter with adjustable ignition cut schemes
-Soft RPM limiter with adjustable ignition retard
-Launch RPM limiter
-Double spark at all RPMs
-Max RPM tell tale
-Shift Light output
-Clutch pedal input
-Tacho calibration
-Upgradeable through firmware updates

Fits:
Porsche 911 1978-83
Porsche 930 3.3L 1978-89

For Installation Guide CLICK HERE

For 911-CDI+ Dyno Test Results CLICK HERE

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

93060270200
93060270200
930602702 X
930602702X

The product you are viewing cross references to these numbers
DISPLAYING 1 to 5 (of 5 products)
Also found on these pages
About Electronic Control Units

Electronic Control Units (ECUs) – Precision Performance and Reliability for Porsche Vehicles

Electronic Control Units (ECUs) are the brains of your Porsche’s electronic systems, managing and monitoring everything from engine performance to fuel delivery, ignition timing, transmission response, and emissions control. These highly sophisticated modules communicate with multiple sensors and actuators to ensure your car runs efficiently, safely, and smoothly under all driving conditions.

At Design911, we supply a wide range of genuine and high quality ECUs for Porsche models - including engine control units, transmission control modules, body control units, and more. Each ECU is manufactured to the highest standards, ensuring exact compatibility and seamless communication with your vehicle’s electronic architecture.

What Do Electronic Control Units Do?

An ECU acts as the central processor of a vehicle’s system, interpreting data from sensors and adjusting performance parameters in real-time. Depending on the application, ECUs can control:

  • Engine management: fuel injection, ignition timing, turbo boost, and air-fuel ratios.
  • Transmission systems: shift points, torque converter lock-up, and gear selection.
  • ABS and traction control: maintaining grip and stability.
  • Body systems: lighting, climate control, and interior functions.

Modern Porsche vehicles often contain multiple ECUs working together across a CAN bus network, ensuring optimal efficiency, emissions compliance, and driver comfort.

Why Do ECUs Fail?
Electronic Control Units are robust, but can fail due to age, environmental factors, or electrical faults. Common causes include:

  • Water ingress or corrosion: damaging internal circuits.
  • Voltage spikes or short circuits: caused by battery or alternator issues.
  • Thermal stress: from prolonged engine heat cycles.
  • Software corruption or data errors: due to low voltage or improper programming.
  • Connector and harness faults: causing poor communication with sensors.

Symptoms of ECU failure may include engine misfires, warning lights, poor performance, stalling, or failure to start.

Why replace your ECU?
A faulty ECU can cause unpredictable performance, poor fuel economy, and safety concerns. Replacing a malfunctioning unit restores the precision and reliability your Porsche was built to deliver.

Benefits of replacing with a quality ECU include:

  • Full compatibility with vehicle systems.
  • Restored factory performance and efficiency.
  • Elimination of warning lights and diagnostic faults.
  • Improved reliability and drivability.

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