P0101
Mass or Volume Air Flow Sensor A Circuit Range/Performance
Powertrain · Generic (all makes)System: Intake Air/Vacuum + Electrical/Circuits
Safe to drive short term. Book a repair.
Likely causes
- Dirty mass air flow sensor
- Air leak after the sensor
- Clogged air filter
What to check first
Clean the MAF with sensor cleaner and check the intake duct for cracks before replacing the sensor.
Typical repair cost
$80 – $400
Independent-shop parts and labor for the usual fix. Your price depends on the actual cause and the vehicle.
Next step
General information, not a diagnosis of your vehicle. Repair costs are typical shop ranges, not quotes.