what does code po101mean

Asked by GuruW2L6 Apr 01, 2017 at 12:10 PM about the Chevrolet Blazer

Question type: Maintenance & Repair

1 Answer
30,485

Tom answered 7 years ago

P0101 - Mass Air Flow Sensor Circuit Range/Performance. The mass airflow sensor (MAF) measures the amount of air entering the engine. The OBD-II code P0101 is set when the signal from the mass air flow sensor is out of expected range, or in other words, the MAF sensor doesn't work properly.

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