How do I know if my mass air flow is bad?
Symptoms of a Faulty Mass Air Flow Sensor
- The engine is very hard to start or turn over.
- The engine stalls shortly after starting.
- The engine hesitates or drags while under load or idle.
- Hesitation and jerking during acceleration.
- The engine hiccups.
- Excessively rich or lean idling.
What diagnostic trouble code does a malfunctioned mass air flow sensor generate?
The mass airflow (MAF) sensor is a device that is mounted on the air intake. Its job is to measure the density and, therefore, the volume of filtered air that is drawn into the engine. When the PCM perceives the sensor or its circuit is malfunctioning, OBD-II code P0101 is triggered.
What are the codes for mass air flow?
Note: Some MAF sensors also incorporate an air temperature sensor, which is another value used by the PCM for optimal engine operation. Closely related MAF circuit trouble codes include P0100, P0101, P0103, and P0104. Photo of a MAF sensor:
What is the trouble code for a MAF sensor?
Note: Some MAF sensors also incorporate an air temperature sensor, which is another value used by the PCM for optimal engine operation. Closely related MAF circuit trouble codes include P0100, P0101, P0103, and P0104. Photo of a MAF sensor: What are some possible symptoms? Symptoms of a P0102 code may include:
What causes the mass air flow sensor to malfunction?
Potential causes for this trouble code may include: Dirty or contaminated mass air flow sensor. Failed MAF sensor. Intake air leaks. MAF sensor electrical harness or wiring problem (open, shorted, frayed, poor connection, etc.)
What does p0100 mean on a MAF circuit?
P0101 Mass or Volume Air Flow “A” Circuit Range/Performance P0102 Mass or Volume Air Flow “A” Circuit Low Input P0103 Mass or Volume Air Flow “A” Circuit High Input P0104 Mass or Volume Air Flow “A” Circuit Intermittent Photo of a MAF sensor: