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P0101 Diagnostic Trouble Code Discussion for December 2020

Mass Airflow Sensor Performance

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Trouble Ticket Help Requests for DTC P0101
Help Request Posted
2005 GMC Sierra 2500 HD SLE 6.6L Excessive Emissions, Poor Idle Quality, Hesitation VIN: 1GTHK23255
P0101: MAF Sensor Performance. Thanks for taking the time to review this This truck was rolling along the highway and lost all power. It had to be idled off the road. It smokes grey and will not throttle up. The maf reports 19 grams at idle. I removed the EGR solenoid and commanded it. ...
December 30, 2020