OBD codes / P0100
P0100
ModerateMass or Volume Air Flow Circuit Malfunction
Get it looked at soon to avoid further wear.
Likely causes
- dirty/faulty MAF sensor
- wiring fault
- vacuum leak
Common fixes
- clean or replace MAF sensor
- repair wiring
Seeing P0100 on your car? Get a diagnosis specific to your exact year, make and model.
Diagnose P0100 for my vehicleGeneric OBD-II reference. Manufacturer-specific behavior varies — confirm with a scan tool and, for safety-related codes, a professional inspection.