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S/C'd M3 won't idle....help (archive)
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Posted by Jim//M3 on January 29, 2001 at 10:40:23:

I just got finished re-installing my supercharger after having it rebuilt. I double checked all the vacuum line connections and everything looks fine. But when I start the car, it will idle for about 3 seconds, stumble, then dies. I keep trying to start it and it keeps dying. Even if i try to hold the rpms at around 3000, it'll still eventually die.

One guess would be that before I had the s/c rebuilt it was blowing some oil (because of a bad seal) through the throttle body into the intake. Would this extra oil going through the engine this way foul up the O2 sensor?? The reason I say this is that right before I pulled the s/c, I got 2 engine codes that read: knock sensor cyls 1-3 and lambda control #1, which I understand are most likely O2 sensor related.

The car showed no more codes after I kept trying to start it.

Any help is appreciated.



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