Thread: N54 Backfiring?
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      04-07-2013, 09:05 PM   #29
jose325i
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Drives: 2008 135i
Join Date: Sep 2011
Location: Houston

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Once, I accelerated WOT and shifted from 1-2 in Manual mode (step tranny) around 3-3.5k...Heard a LOUD "bang" from the exhaust, and got a service engine soon light.

I think the car turned off 2-3 cylinders afterwards. When I tried to accelerate, the RPM gauge would just wobble up and down, almost no power. After driving relaxed for a minute, the light went away and the car went back to normal. Anyone had this happen? I'm 100% stock...
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