P010F: Mass or Volume Air Flow Sensor A/B Correlation

What does P010F mean?

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.

The code tells you which monitor failed, not which part is broken. Test before replacing parts.

Symptoms

• Check engine light on
• Lack of power, uneven running
• Mixture codes for one bank (P0171/P0174) possible

Common causes

• High Air leak or loose intake pipe on one side
• High One of the two sensors contaminated or aged
• Medium Air filter on one side clogged or wrongly fitted
• Low Turbocharger or boost problem on one bank
• Low Contact resistance in connector or wiring

Likelihood is a general estimate across vehicles; your make and model may differ.