What does code P0100 mean?
The ECU detects a general fault in the MAF (Mass Air Flow) sensor circuit. This may be an electrical issue, signal problem, or a MAF sensor that is not correctly measuring incoming air.
OBD-II Code
P0100 — Mass or Volume Air Flow Circuit Malfunction
The ECU detects a general fault in the MAF (Mass Air Flow) sensor circuit. This may be an electrical issue, signal problem, or a MAF sensor that is not correctly measuring incoming air.
Common symptoms
- Loss of power
- hesitation
- high fuel consumption
- rough idle
- check engine light on
Possible causes
- Damaged MAF sensor
- dirty connector
- broken wire
- short circuit in harness
- extremely dirty air filter
- intake air leaks
Initial recommendation
Inspect and clean the MAF using specialized cleaner, check connector and wiring, inspect intake system for air leaks.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0100 with your vehicle's actual symptoms for more complete diagnostic guidance.
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