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P0101 Diagnostic Trouble Code Discussion for August 2010

Mass Airflow Sensor Performance

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Trouble Ticket Help Requests for DTC P0101
Help Request Posted
2006 Chevrolet Silverado 1500 LS 4.3L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 3GCEC14X16
P0101: MAF Sensor Performance. we have been all over this thing it is missing on 2,4,6 injector pulse is good on ye/bk(cylinder 6),l-bl/bk(4 cylinder),l-gn(2 cylinder). We dropped the exaust and there was no change ignition spark looks good. Fuel trims sht term is 2-6. All fuses have been c...
August 05, 2010
2004 Chevrolet Tahoe LS 4.8L MIL Lamp on VIN: 1GNEC13V64
P0101: MAF Sensor Performance. Truck runs fine no driveailty issues execpt mil light. Trouble codes when light/medium throttle. Checked air flow sensor, map sensor, throttle actuator, smoked intake and air duck for leaks, exhaust for restriction below 2lbs. Cruise, pulled exhaust and test d...
August 18, 2010
2004 Isuzu NPR 6.0L MIL Lamp on VIN: 4KLB4B1U04
P0101: MAF Sensor performance. Everyday use for a local school. Truck sits a lot, checked CAT temp last visit seemed okay. Am testing with a genisys, dealer replaced MAF a few years ago for same problem. Should I be loooking for a fuel, or an exhaust restriction? Flow at pipe seems okay.
August 24, 2010