P0103Severity: Medium
P0103 – Mass Air Flow (MAF) Sensor High Input
The MAF sensor reports a higher signal than expected.
What it means
The mass air flow sensor reports more incoming air than actual. It usually stems from a sensor fault, wiring short or leads to an overly rich mixture.
Symptoms
- High fuel use
- Rough running
- Loss of power
- Check-engine light
Common causes
- Faulty MAF sensor
- Wiring short
- Connector issue
- Supply voltage fault
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Frequently asked questions
What does trouble code P0103 mean?
P0103 – Mass Air Flow (MAF) Sensor High Input. The mass air flow sensor reports more incoming air than actual. It usually stems from a sensor fault, wiring short or leads to an overly rich mixture.
Can I drive with a P0103 code?
You can usually drive short distances, but it's best to have it checked before it gets worse.