Elektrik: Engine start problem.

[sven-erik]

Hello E38 fans.
If someone have an idee to a solution on my starting problem please reply.
A little more info, there a no ignition and no fuel availible when trying to start the engine, starter motor working ok.
Have also tested Relay K9 (Unloader relay ignition coils) relay OK

Best regards
Sven-Erik




Hello E38 fans.
My name is Sven-Erik, I live in Svendborg,Denmark and drive an e38 730I M60/1
engine. Model year 07/1994.

Its my hope somone can help me with following starting problem.
After driving few kilometer yesterday I parket the car, and now I am not able to start the engine. During the driving yesterday the engine stops momently a few times, but was able to start it again, but this morning the engine will
not start.

Engine turns over, but do not start. Found that fuel pump relay (K96) do not get power( relay tested and are working ok)
Fuse F57 and F17 OK
On fuel pump relay socket, messured +12 Volt on pin 6 and pin 8
Fuel pump tested with jumper over pin 6 and 2 on socket, pump working OK.
Even with jumper installed and fuel pump running, engine dont start.
It looks like the the Engine Control Module (DME) not activate the Fuel Pump
Relay K96. and some other(for me unknown ) start signal.

With a Peake R5/fcx tool have read a fault code 1A (Control unit supply)
and fault code 0d (Oxygen sensor,#19) and fault code 29 (Air mass sensor)
Have also done a reset and no fault code active after reset.

If DME module are defekt, is it just plug and play ore does replacement require
BMW Service.

Hope for some reply on this matter, please write in deutsch I read and understand deutsch, but do not write it very well.

Best Regards
Sven-Erik Ryborg