Home › Codes › Sensor & timing codes
P0102: Mass or Volume Air Flow Circuit Low Input
Severity: Medium Drive gently and get it diagnosed soon.
What does P0102 mean?
The MAF sensor signal voltage is lower than normal.
Generic OBD-II definition: Mass or Volume Air Flow Circuit Low Input. Confirm applicability in your vehicle service information.
Common causes
- Unplugged or damaged connector
- Open or shorted wiring
- Failed MAF sensor
- Dirty sensor
Symptoms
- Hesitation or stumbling
- Rough idle
- Stalling
- Poor fuel economy
Can I keep driving with P0102?
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