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Old 02-18-2012, 06:41 AM   #1
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Join Date: Feb 2012
Location: north wales
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My Ride: BMW 323CI
323ci oxygen sensor bypass

I have just had my car checked with code reader and it says fuel trim bank 1 & bank 2
also misfire on cylinders 4,5,6 pendinding
at a loss but someone says you can bypass the sensor or away that can get rid of it and turn my EML out

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Old 02-18-2012, 07:41 AM   #2
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Location: NJ
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You don't want to bypass the sensor. You want to fix your problem.

It may be an 02 sensor, but I think it's odd you have FT issues on bank 1 and 2, but only misfires on bank 2. Thus, I'm not thinking 02 sensor. I'm thinking an intake leak and for some reason, DISA is coming to mind. I know I've seen posts about misfires in only one bank, and I think maybe DISA...although I'm also thinking maybe it was the lower intake boot. I remember thinking it odd that a single leak would affect the second bank more.

Vague recollections, I know. Sorry...but hth anyway!
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Old 02-18-2012, 10:30 AM   #3
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What is DISA please
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