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Re: 6.7 Cummins setting 02 sensor faults
Posted to Technical Tips Forum on 1/18/2017

Hi Dennis

The truck was fully stock. I did replace the air filter and it was somewhat dirty. However the MAF was clean as a whistle. The MAF wasn't contaminated, just out of calibration for what ever reason. The engine was checked and was not over fueling or... Login to read more.