What does code P0101 mean on a Alfa Romeo and is it safe to drive?
P0101: Mass Air Flow Circuit Range/Performance. Here’s what it means on your Alfa Romeo, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
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What this code means
The MAF sensor signal is outside the expected range. Often dirty sensor or intake leak.
Common causes for your Alfa Romeo
- 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
For a Alfa Romeo, repairs for P0101 often fall between $20 and $350, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.