Last night I cleaned my MAFs. Thy looked ok, but I assume that even a slight film would cause a problem. Also cleaned my K & N's and made sure they weren't putting out any excess oil. Also looked for exhaust leaks and checked the intakes & everything looked good. Haven't reset the codes yet, but I did do a 10 mile highway drive this morning and mileage seems normal - about 28 MPG. I'll get my code reader on Monday and clear them and see if they come back.
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