Thread: **First Time Tuners** Start Here** Official Misfire Thread| Updated!
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      03-14-2019, 08:14 PM   #330
beetle6986
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Drives: E90 335xi, E70 X5 50, 04 Cobra
Join Date: Jun 2013
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Originally Posted by beetle6986 View Post
I replaced all of the injectors with index 12 injectors and the car still misfires! I guess I will remove the jb4 and see if that could be causing it. then do O2 sensors next. After that.... off to the junk yard and I'm done with BMW. I'll go back to american made.


Removed the JB4. That didn’t help. I guess I’ll do O2 sensors next.
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