Quote:
Originally Posted by Chaika_335i
First off,
I would like to apologize for sacrificing a thread to more misfire stuff but I don't like resurrecting ancient threads.
My 335i has what sounds like a misfire on cold starts at idle that. Clears up after 40 seconds, my idle rpm don't fluctuate and I can hardly feel it inside the car. And I gave absolutely no fault codes.
So the question is is this normal, and what causes this.
I suppose it has something to do with DI and the fact I take a lot of short runs.
Do any of you experience the same issue?
I also took it into the dealer and they said it's pretty normal  |
Sounds like leaky injectors. Pull the plugs, they likely are fouled with fuel.
Also, check the index number (the last number) on the injectors. 12 is the best revision. Anything under 10 is playing with fire. 9 and 7 are the worst offenders.
Quote:
Originally Posted by Koolsilver
Mine does the same I'm thinking it's my injectors but so far haven't been able to prove it to myself doing the normal tests so I don't want to shell out 1k+ on a hunch.
|
What index are your injectors? It's only a matter of time for anything under revision 10.