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

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.

Symptoms

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

Most likely causes

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

What to check, in order

Start with the simplest. You can tick off each step.

1. Check the air filter and hoses
2. Compare both signals at the same time in live data and check any recent installation work.
3. Inspect the connector
4. Compare the airflow in live data at idle and while revving
5. Clean the sensor only with a dedicated cleaner
6. Replace the mass air flow sensor if the reading does not follow engine speed

Good to know

• Repair difficulty: medium
• It can trigger limp mode.
• It affects emissions.

What each character of P010F means

• P: Powertrain: engine and transmission
• 0: Generic code: same on every make
• 1: Air and fuel
• 0F: Specific fault in that system

Frequently asked questions

Can I keep driving with code P010F?

You can drive in moderation. If the engine goes into limp mode, go to a repair shop without passing other vehicles or demanding power.

What causes code P010F?

The most common causes are: air leak or loose intake pipe on one side; one of the two sensors contaminated or aged; air filter on one side clogged or wrongly fitted.

Related codes

• P0101Mass or Volume Air Flow Sensor A Circuit Range/Performance
• P010BMass or Volume Air Flow Sensor B Circuit Range/Performance
• P0171System Too Lean Bank 1
• P0174System Too Lean Bank 2
• P010AMass or Volume Air Flow Sensor B Circuit

Sources

• law.cornell.edu: 13 CCR 1968.2
• gsi.ext.gm.com: 18OBDG03A Engine Diagnostics
• static.nhtsa.gov: MC 10231527 0001
• en.wikipedia.org: Mass flow sensor

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.