P1101Mass air flow sensor out of self-test range
- Ford code · Engine
- How the car detects it
- During a scan-tool self-test the mass air flow (MAF) sensor signal was too high with the engine off, or outside the expected range with it running. Ford asks to fix any MAF circuit codes first.
- What you may notice
- Usually set during a workshop self-test
- Likely causes
- PossibleMAF sensor dirty, damaged or not fully plugged in
- PossibleAir leak in the intake after the MAF sensor
- RareOpen ground or signal-return wire
- RareLow battery charge
- Sources
Backed by at least two independent sources.
From Obdaryn's Ford pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.