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Old 11-21-2011, 01:53 PM   #2
Registered User
Join Date: May 2007
Location: SF Bay Area
Posts: 165
My Ride: 2003 330i ZHP
Just a thought...
Would a dirty MAF cause a P0171 or P0172 error? I had a hose at the MAF replaced about a year ago. I'm wondering if that's related?
Tazlord is offline   Reply With Quote