E46Fanatics - View Single Post - BMW 323i rough idle, no power!!!
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Old 12-07-2012, 05:28 AM   #66
Registered User
Join Date: Dec 2012
Location: Germany
Posts: 128
My Ride: 323i
Cleaning the MAF sensor seems to have fixed mine. I just did it yesterday and took it out for a short test drive and it was fine. I was going to go for a longer ride today to confirm it, but I am in white out conditions with no end to the snow in sight so I'm not going anywhere, but it is really easy to do and may fix your problem as well. On mine it was causing a misfire and even funny shifting due to the false signal from the MAF causing the trans to run too high of pressure. After seeing several similar threads I believe this may be a common but overlooked problem.
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