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      01-08-2012, 02:21 AM   #23
dicostal
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Drives: 2007 335i
Join Date: Jun 2010
Location: Italian in CT - USA

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Quote:
Originally Posted by vasillalov View Post
So basically, what you are saying that after eliminating the obvious: spark plugs and coils, it could be a wide variety of things that can cause a misfire: anything from carbon build up, bad fuel injector, fuel pump , etc etc.

...not the moon phase?

What do you suggest for my situation:

* 25K miles on car
* Brand new spark plugs
* Swapping coils does not move the misfires to a different cylinder
* Injectors and HPFP replaced less than 5K miles during recall campaign
I would try fuel injection cleaner. I know many say it does nothing to Di engines, but i can swear it eliminated some of hesitation on hard acceleration. Cheap enough to try.
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