BMW S54 CSL Airbox ECU conversion & Cabling

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This is a Repair Service, where you need to print and fill in the PDF form and send your unit to us.

£70.00£180.00

In Stock

Description

ECU Conversion from MSS54 to MSS54HP

The ECU is found in BMW E46 M3. It is from preface lift models from pre 2003.
Which require an upgrade to the MSS54HP, facelift version, if you are planning to add a
CSL type of airbox/plenum.
If you are planning to add the Flap, we can also add the parts to the ECU for that to function.
We can also provide the full cabling for the map sensor, air sensor, piping, T-piece, clips, etc. Everything you need to make the CSL airbox run smoothly. You will need to get the ECU Mapped afterwards.

Cabling instructions

In order to run ‘CSL’ software on your main engine ECU / DME you need to run a MAP sensor. A ‘GM’ 1 Bar MAP sensor is an affordable alternative to the genuine BMW Bosch unit.

The MAP sensor is wired to the DME via 3 wires.

The wires are connected in the following manor:

MAP Sensor – Pin A to DME – Splice to X60003 Pin 17 (Brown/Orange) or insert a new pin into X60003 Pin 16 – Ground
MAP Sensor – Pin B to DME – Insert a new pin into X60003 Pin 18 (Yellow) – Signal
MAP Sensor – Pin C to DME – Splice to X60003 Pin 7 (Red/Green) – Shared Power (5V)

A relocated IAT is often also required; the wiring for the IAT sensor should be connected in the following manor:

IAT Sensor – Pin 1 to DME – X60003 Pin 22 (Yellow/Blue) – Power
IAT Sensor – Pin 2 to DME – X60003 Pin 25 (Brown) – Ground

The wiring for the IAT sensor is reversible at the IAT end.

For identifying the connectors at the ECU / DME end, please refer to the following pin out.

CSL Flap Wiring

CSL Flap Motor (Actuator) – Pin 1 to DME X60002 Red Pin 8 – Power

CSL Flap Motor (Actuator) – Pin 2 to DME X60002 White Pin 9 – Ground

 

CSL Flap Position Sensor – Pin 1 to DME X60003 Brown Pin 20 – Shared Ground

CSL Flap Position Sensor – Pin 2 to DME X60003 Black Pin 1 – Signal

CSL Flap Position Sensor – Pin 3 to DME X60003 Red/(Green or yellow)  Pin 14– Shared Power

 

Downloadable Version

 

Any question or discussing what is perfect for your car and needs, please do not hesitate to contact us.

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