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Old 01-24-2013, 04:50 PM   #25
glhx
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Join Date: Jan 2012
Location: Middle Tennessee
Posts: 649
My Ride: 2002 BMW 330ci
could this simply be a vacuum leak. o2 is reading air in the system (reading a lean condition) ....reporting it to the computer....computer adjusts the injectors to run rich. this extra air being down stream from the maf sensor could do that.
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