P010D code meaning
Mass or Volume Air Flow Sensor B Circuit High
Powertrain system Generic code P01xx codes Check engine light
What P010D means
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. P010D means the signal of sensor B is above its electrical upper limit – the counterpart of P0103. GM's twin-turbo V6 sets it at 14,500 Hz or more (two trips); Ford's digital sensor B when the signal period drops below 83 microseconds, i.e. above roughly 12 kHz, for 5 s. Typical causes are a signal wire shorted to voltage, failed sensor electronics or interference from nearby ignition or actuator wiring. A substitute value is used.
P010D at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 1.5 hours
- Clears after repairAfter a drive cycle
Symptoms of P010D
- Check engine light on
- Substitute value mode, lack of power
- Rich mixture and higher consumption possible
Common causes of P010D
- Most likelySignal wire of sensor B shorted to voltage
- Most likelySensor B electronics failed
- PossibleInterference from harness routing
- Less likelyControl module input faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Mass air flow sensor bMass air flow sensor wiringSensor supply voltage
What each part of P010D means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 1 | Area: fuel and air metering. |
| 0D | The exact fault in that area. |
What to do next
- Note P010D and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P010D
What does P010D mean?
P010D means "Mass or Volume Air Flow Sensor B Circuit High". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with P010D?
Drive gently and only to a workshop. With P010D the car can go into limp mode (reduced power) to protect itself.
Will P010D fail an emissions test?
Yes, it can. P010D is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P010D to fix?
Difficulty: easy. A typical repair takes 0.3 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P010D clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.