Fuel System - MIL ON/Codes 2786/2787/2788 Set

SI B 12 14 08
Engine Electrical Systems

May 2008
Technical Service

This Service Information bulletin supersedes SI B12 14 08 dated March 2008.

[NEW] designates changes to this revision

SUBJECT
Service Engine Soon Lamp Is Illuminated, EKP FC 2786, 2787, 2788

MODEL
[NEW] E90, E92 and E93 (3 Series) M3 (S65 engine)

[NEW] Affects vehicles from start of production to April 29, 2008

SITUATION
The customer complains that the Service Engine Soon Lamp is illuminated. One of the following faults can be stored in the Fuel Pump Module (EKP):

^ FC 2786 Fuel Pressure Sensor, plausibility, sensor value too low

^ FC 2787 Fuel Pressure Regulation, plausibility, pressure too low

^ FC 2788 Fuel pressure, plausibility, pressure too low

[NEW] CAUSE
Hardware error in the EKP (control unit for the electric fuel pump)

[NEW] PROCEDURE
In cases where only EKP-related fault codes are stored in the DME, perform the necessary test plans for each of the faults stored. If an exact determination of the failure cannot be identified using the applicable test plans, only replace the EKP control unit for the electric fuel pump. Replacement of the EKP does not require programming of the vehicle.

In cases where other fault codes are stored in the engine management system in conjunction with EKP faults, diagnose the vehicle based on those other faults codes only, i.e., misfire, crankshaft sensor, camshaft sensor, etc.





PARTS INFORMATION

WARRANTY
Covered under the terms of the BMW New Vehicle Limited Warranty.





Disclaimer