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P0101 Diagnostic Trouble Code Discussion for June 2010

Mass Airflow Sensor Performance


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Trouble Ticket Help Requests for DTC P0101
Help Request Posted
2004 Volkswagen Jetta TDI 1.9L Surge, Misfire VIN: 3VWSR69M14
P0101: Mass Air Flow Sensor. We checked the inner cooler with no issue to be found; the intank fuel pump was inoperative, now replaced. Does the inner cooler have an issue that anyone is aware of? We checked the turbo wastegate, it will not hold back with vacuum. Is this normal? Checked f...
June 07, 2010
2002 Mercedes-Benz C320 3.2L Hesitation, Stall VIN: WDBRF64J92
P0101: maf plausibilty. Have tried 3 different maf's. Last one from the dealer. the vehicle starts and idles fine. As soon as you give it gas o2 goes lean and it hesitates bad, fuel pressure is good and it sets the code after clearing almost every time. Smoked it no vacuum leaks, idl...
June 09, 2010
2005 GMC Sierra 2500 HD 6.6L MIL Lamp on VIN: 1GTHK232X5
P0101: MAF Sensor Performance. ... with the "Check Engine Light" on two days ago. The code was P0101 MAF Sensor circuit. After some diagnosis the MAF and harness was changed. The CEL has not come back on, but this truck is pumping out the black smoke under light and heavy accelerati...
June 24, 2010
2006 Volkswagen Jetta TDI 1.9L Excessive Emissions, Poor Fuel Economy VIN: 3VWR171K96
P0101: Mass air flow sensor g70 implausible signal. HI VW TECH'S, after clearing the codes and driving it's the EGR code that comes on first. The engine smokes when first accelerating and at times will be low on power. So we tried a new MAF sensor and no good all though my readings were good, the old one read t...
June 29, 2010
1999 Buick LeSabre Custom 3.8L Excessive Emissions, No Start, Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 1G4HP52K4X
P0101: MAF Sensor Performance. ... customer was driving and went to make a turn and the car shut off on her. Customer also stated that the oil light and check engine light came on at that time. I went out to start it had to hold the gas pedal at about half throttle to get it started ran hor...
June 30, 2010
2004 Volkswagen Jetta TDI 1.9L Surge, Misfire VIN: 3VWSR69M14
P0101: Mass Air Flow Sensor. We checked the inner cooler with no issue to be found; the intank fuel pump was inoperative, now replaced. Does the inner cooler have an issue that anyone is aware of? We checked the turbo wastegate, it will not hold back with vacuum. Is this normal? Checked f...
June 07, 2010
2002 Mercedes-Benz C320 3.2L Hesitation, Stall VIN: WDBRF64J92
P0101: maf plausibilty. Have tried 3 different maf's. Last one from the dealer. the vehicle starts and idles fine. As soon as you give it gas o2 goes lean and it hesitates bad, fuel pressure is good and it sets the code after clearing almost every time. Smoked it no vacuum leaks, idl...
June 09, 2010
2005 GMC Sierra 2500 HD 6.6L MIL Lamp on VIN: 1GTHK232X5
P0101: MAF Sensor Performance. ... with the "Check Engine Light" on two days ago. The code was P0101 MAF Sensor circuit. After some diagnosis the MAF and harness was changed. The CEL has not come back on, but this truck is pumping out the black smoke under light and heavy accelerati...
June 24, 2010
2006 Volkswagen Jetta TDI 1.9L Excessive Emissions, Poor Fuel Economy VIN: 3VWR171K96
P0101: Mass air flow sensor g70 implausible signal. HI VW TECH'S, after clearing the codes and driving it's the EGR code that comes on first. The engine smokes when first accelerating and at times will be low on power. So we tried a new MAF sensor and no good all though my readings were good, the old one read t...
June 29, 2010
1999 Buick LeSabre Custom 3.8L Excessive Emissions, No Start, Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 1G4HP52K4X
P0101: MAF Sensor Performance. ... customer was driving and went to make a turn and the car shut off on her. Customer also stated that the oil light and check engine light came on at that time. I went out to start it had to hold the gas pedal at about half throttle to get it started ran hor...
June 30, 2010