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P0101 Diagnostic Trouble Code Discussion for October 2010

Mass Airflow Sensor Performance

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Trouble Ticket Help Requests for DTC P0101
Help Request Posted
2002 Chevrolet Silverado 2500 HD LT 6.6L MIL Lamp on VIN: 1GCHK23142
P0101: MAF Sensor Performance. We have a 02 duramax that failed ca smog inspection due to cel on w/ po101, maf flow/volume code. Truck had a k&n intake system installed and we tested maf system and values. Flow rate seemed to be lower than specs. Tried another maf, to no avail. Smoke ch...
October 01, 2010