P010BMass or Volume Air Flow Sensor B Circuit Range/Performance
- 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
- Sensor B is a second mass air flow sensor in a second intake path, found on engines with two air filter boxes – for example the Nissan VR30DDTT twin-turbo V6 (where sensor B belongs to bank 2) or GM's 3.0 litre twin-turbo V6. P010B is the plausibility fault of sensor B: the signal is electrically valid but does not fit. GM checks it like sensor A against a model built from the other sensors (manifold pressure, boost, throttle, sensor A) and fails it above 20 g/s deviation, with two trips. For the VR30DDTT Nissan names a loose or leaking left-hand intake pipe as the main cause and warns against touching or dismantling the sensor. Other causes match P0101: a soiled element, a clogged filter on that side or a boost leak.
- What you may notice
- Check engine light on
- Lack of power, hesitation
- Rough idle
- Bank 2 mixture codes (P0174) possible
- Likely causes
- LikelyIntake pipe on the sensor B side leaking or not seated
- LikelySensor B element contaminated (oil, dust)
- PossibleAir filter on that side clogged or wrongly fitted
- PossibleBoost leak on that bank, or sensor/connector problem
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €10 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.