What does code P0101 mean and is it safe to drive?
P0101: Mass Air Flow Circuit Range/Performance. Here’s what it means, what usually causes it, what repairs typically cost, and how urgent it is to keep driving.
Powertrain
What this code means
The MAF sensor signal is outside the expected range. Often dirty sensor or intake leak.
Common causes
- Dirty or contaminated MAF sensor
- Intake leak after MAF
- Faulty MAF sensor
Symptoms
- Check Engine Light
- Rough idle, hesitation
- Poor acceleration or fuel economy
Typical fixes
- Clean MAF with MAF cleaner
- Replace MAF if cleaning doesn't help
- Fix intake leaks
Repair cost range
Repairs for P0101 often fall between $20 and $350, depending on the cause and your vehicle.