16487moderate severityPowertrain
Mass or Volume Air Flow Circuit High Input
on 2008 Audi Q7 4.2L V8 · AWD
What this code means
The MAF sensor is reporting airflow signal too high (OBD P0103). Wiring shorts or a faulty sensor are common causes.
Symptoms
- Rich running condition
- Rough idle
- Reduced fuel economy
Common causes
- Faulty MAF sensor
- Short to voltage in wiring
- Connector corrosion
- Faulty ECM
Diagnostic steps
- Read live MAF airflow data
- Inspect MAF wiring for shorts
- Check connector for corrosion
- Test with known-good MAF sensor
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