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Discussion Starter #1 (Edited)
Hi people I'm having a problem with my 2004 330ci aut(not zhp). When I try to turn on my car it starts but didn't turn on,other times it turn on and off very fast but after do the same thing like 5 times it starts normally and sometimes also the light from the transmission(at the left of the letter of P,R,N,D) went on. If I keep playing turn on and off the light comes off and I can drive the car normally. The codes are camshaft sensor,crankshaft sensor,air mass meter...crankshaft sensor and air mass meter are new. I think it's maybe the ECU...What do you think? I read somewhere I don't remember that the anti theft system send wrong codes and didn't start the car, that I have to change the ECU...
 

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Possibly the fuel pump, but need to know more. It could be triggering the other codes since its "hiccuping" to get started right now.
 

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Discussion Starter #4
the crankshaft sensor was replace...yes maybe it's the fuel pump thats my next step...i think its maybe the ecu because I have a vw with similar sympthons and was the ecu but I dont know my car has only 70k
 

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Today I check the car and its a electrical problem..there is no current in sparks when the sympthon occurs...what do you think? Ecu?
 
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