P0101 – Mass Air Flow (MAF) Sensor Performance
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Symptoms
- Rough idle
- Hesitation
- Poor acceleration
- High fuel trims
- Check engine light
Causes
- MAF contamination
- Vacuum leaks
- Air intake leaks
- Faulty MAF sensor
- Exhaust leaks
Diagnosis
- Inspect MAF wiring
- Check fuel trims
- Smoke test intake
- Test MAF sensor
- Inspect air filter
Repair
- Clean or replace MAF
- Fix vacuum leaks
- Repair intake leaks
- Replace air filter
- Repair exhaust leaks