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P0100: Mass or Volume Air Flow Circuit
Severity: Medium Drive gently and get it diagnosed soon.
What does P0100 mean?
There is a general fault in the mass air flow (MAF) sensor circuit, which measures how much air is entering the engine.
Generic OBD-II definition: Mass or Volume Air Flow Circuit. Confirm applicability in your vehicle service information.
Common causes
- Dirty MAF sensor element
- Air leak between the MAF and throttle body
- Damaged MAF wiring or connector
- Failed MAF sensor
- Clogged air filter
Symptoms
- Hesitation or stumbling
- Rough idle
- Stalling
- Poor fuel economy
Can I keep driving with P0100?
Severity: Medium Drive gently and get it diagnosed soon.
If the check engine light is flashing or the car runs badly, stop driving and have it checked.
Typical fixes
- Inspect the intake duct for cracks and loose clamps
- Clean the MAF with MAF-specific cleaner
- Check the connector and wiring
- Replace the sensor if readings stay out of range