Bimmerfest - BMW Forums - View Single Post - Misfire Cylinder 2,3,5,6 / Lean Bank 1&2 *Help*
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Old 10-31-2012, 09:33 AM
ITsec ITsec is offline
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Location: VA
Join Date: Oct 2012
Posts: 8
Mein Auto: Z3
The CEL came on again today, but only got 1 code:

P0171 Fuel System Too Lean (Bank 1)

So I'm assuming by just replacing the spark plugs I was able to correct the misfire on cylinders 2, 3, 5, & 6.

Now I have to figure out how to fix the Lean on bank 1.
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