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P0102 Diagnostic Trouble Code Discussion for May 2012

Mass Airflow Sensor Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0102
Help Request Posted
1999 Buick LeSabre Custom 3.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1G4HP52K7X
P0102: MAF Sensor Circuit Low Frequency. ... cat. replaced cat. carf then started but stalled intermittant. found that tapping on maf caused a stall. replaced maf. care went away for 3 days. came back in then with a p0102. scoped maf - 0-50hz. checked 12v on pink and 0 volts on black. unpluded sensor...
May 03, 2012