Nissan MAF Fault P0100 Diagnose and Reset Engine Light Autel AL319
The powertrain control module (PCM) uses that reading along with other sensor parameters to ensure proper fuel delivery at any given time for optimum power and fuel efficiency. This P0100 diagnostic trouble code (DTC) means that there is a detected problem with the Mass Air Flow (MAF) sensor or circuit. The PCM detects that the actual MAF sensor frequency signal is not performing within the normal expected range of the calculated MAF value. Note: Some MAF sensors also incorporate an air temperature sensor, which is another value used by the PCM for optimal engine operation.
What are some possible symptoms?
Symptoms of a P0100 code may include:
- Malfunction indicator lamp (MIL) illumination (a.k.a. check engine light)
- Rough running engine
- Black smoke from tail pipe
- Stalling Engine hard start or stalling after it starts
- Possible other driveability symptoms or even no symptoms
WHAT CAUSES THE CODE?
- 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.)
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