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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 10-20-2011, 05:22 PM   #1
radames15
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Join Date: Aug 2010
Location: P.R.
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My Ride: 2004 BMW 330ci
Promblem starting my 330ci HELP!

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...

Last edited by radames15; 10-20-2011 at 06:05 PM.
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Old 10-20-2011, 05:26 PM   #2
jasonbimmer
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replace the sensors? why would it be the ECU?
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Old 10-20-2011, 05:45 PM   #3
ALPIN3
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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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Old 10-20-2011, 06:13 PM   #4
radames15
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My Ride: 2004 BMW 330ci
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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Old 10-25-2011, 08:25 PM   #5
radames15
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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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Old 10-25-2011, 08:29 PM   #6
chqj
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What's the code you have? That's fun stuff. People will help you out.
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