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P0102 Diagnostic Trouble Code Discussion for February 2018

Mass Airflow Sensor Circuit Low Voltage


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Trouble Ticket Help Requests for DTC P0102
Help Request Posted
1998 Ford F-150 XL 4.2L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 1FTZX1723W
P0102: MAF A circuit too low. ... is running crazy rich. As listed above STFT1 and STFT2 are pegged at -20% @ idle and @ 3K rpms. F/P is good (34-37psi running). Modis reads no Faults on any injectors. Fuel pulse width is .01 (but not absolutely sure on this). TPS at 19.6 degrees. All ...
February 05, 2018
1998 Ford F-150 XL 4.2L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 1FTZX1723W
P0102: MAF A circuit too low. ... is running crazy rich. As listed above STFT1 and STFT2 are pegged at -20% @ idle and @ 3K rpms. F/P is good (34-37psi running). Modis reads no Faults on any injectors. Fuel pulse width is .01 (but not absolutely sure on this). TPS at 19.6 degrees. All ...
February 07, 2018
2005 Pontiac Bonneville GXP 4.6L No Start, MIL Lamp on VIN: 1G2HZ54Y45
P0102: MAF Sensor Circuit Low Frequency. Vehicle will not start No crank .Has code for transmission mode switch.Transmission staying in drive.Put power to purple wire to starter and vehicle runs but stuck in drive. Check on rack and found oil pressure switch leaking and wiring to OPS switch and b...
February 15, 2018