Thread: oil on MAF
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      02-01-2013, 01:38 PM   #9
Meeni
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Drives: BMW 330i 06
Join Date: Apr 2012
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Quote:
Originally Posted by centexE9x View Post
I think u misunderstood me. The reason I mentioned taking the plugs out is to see if you have a leaking injector. If so the plugs can turn very dark/black from all the extra fuel. May be a reason for low fuel mileage.
Wouldn't that trigger an OBD code for running rich on the O2 sensor ?