P0102 Ford - Mass or Volume Air Flow Circuit Low Input
- Faulty mass air flow sensor
- Intake air leaks
- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor circuit poor electrical connection
Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor.
When is the code detected?
An excessively low voltage from the sensor is sent to Engine Control Module (ECM).
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine stall
- Engine running rough
- Excessive fuel consumption
- Excessive smoke
P0102 Ford Description
The Mass Air Flow (MAF) sensor is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the Engine Control Module (ECM).
The temperature of the hot film is controlled by the ECM a certain amount. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change.
P0102 Ford Information for specific Ford models
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FORD Technical Service Bulletins for P0102 code
2002 FORD EXPLORER Engine And Engine Cooling:exhaust System:emission Control Details
2002 FORD F SERIES Engine And Engine Cooling:exhaust System:emission Control Details
2002 FORD RANGER Engine And Engine Cooling:exhaust System:emission Control Details
2002 FORD TAURUS Engine And Engine Cooling:exhaust System:emission Control Details
2002 FORD F SERIES 063100 Engine And Engine Cooling:exhaust System:emission Control Details
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