P010FMass or Volume Air Flow Sensor A/B Correlation
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- Engines with two intake paths have two mass air flow sensors, A and B. On a symmetrical V engine both sides should draw about the same amount of air, so the readings can be compared with each other. P010F is set when both signals are electrically valid but differ by more than allowed; the code does not say which side is wrong. No manufacturer document using exactly this code or its threshold was found: GM's twin-turbo V6 and Nissan's VR30DDTT assess each sensor separately against a model (P0101/P010B). The description therefore rests on the CARB requirement for plausibility checks and on component sources for engines with two sensors. Typical causes are a leaking intake pipe or a soiled sensor on one side.
- What you may notice
- Check engine light on
- Lack of power, uneven running
- Mixture codes for one bank (P0171/P0174) possible
- Likely causes
- LikelyAir leak or loose intake pipe on one side
- LikelyOne of the two sensors contaminated or aged
- PossibleAir filter on one side clogged or wrongly fitted
- RareTurbocharger or boost problem on one bank
- RareContact resistance in connector or wiring
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €10 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.