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      07-17-2016, 11:36 AM   #6
chadillac2000
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Drives: 2015 BMW M3
Join Date: Nov 2008
Location: Asheville, North Carolina

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Quote:
Originally Posted by CanadianTSi View Post
Probably 95% chance its a bad injector or injector seal. You could always buy a single used injector that is less than an index 11 and swap it in or as you said spring for all new 12s
Quote:
Originally Posted by CanadianTSi View Post
Also index 8s are at least 2-3 years (if not more) old, so the PO may have a different definition of "somewhat recently"
Agreed. About to pull the trigger on index 12s so I don't have to worry about others going bad in the future. I've seen too many issues arise from a leaky fuel injector causing more serious issues than just misfires to take the chance.

Quote:
Originally Posted by sk55 View Post
lower the boost to 14 psi... do a pull from 2k-7k... see if u get a misfire?

are u 6 MT?
Yes I'm a 6MT. Changing maps won't help at all, I get a misfire as soon as the car is started. Stumbling, running on 5 cylinders. Just going through the RPMS in 1st, 2nd and 3rd is a struggle as it sputters and hesitates the whole way. Going WOT on a tuned map is out of the question, so it's not a matter of lowering the boost.

Quote:
Originally Posted by muncie21 View Post

After that I'd start looking to replace/check the mosfets
Not throwing any of the codes associated with mosfets, and I've also only heard of this on 07s -- I have a late build 08.
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