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      01-03-2013, 02:42 PM   #14
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Drives: 2009 335i Convertible
Join Date: Apr 2012
Location: PA

Posts: 272
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Originally Posted by GeorgiaTech335coupe View Post
I just replaced an injector yesterday that was only 3 months old. It was 100% bad and caused my car to have slightly hiccups mid pull, usually misfire up top, and cause my STFT of that bank to act funny in comparison to the other and cause AFR to act funny as well.

These injectors can go bad very quickly....take it from someone who has had over 20 injectors in his car.
This is a very interesting thread, ever since I got my car back from the dealer with new plugs, I feel some osscilations mid range when I floor it. It is consistent and it's in the middle of the power band (Cobb Stage 1 Aggressive) - it was very smooth before but isn't anymore. Could this be a bad injector - how can I tell?
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