What does code P0102 mean?
The MAF sensor is sending a lower than expected voltage; the ECU interprets less air entering the engine than actual.
OBD-II Code
P0102 — Mass or Volume Air Flow Circuit Low Input
The MAF sensor is sending a lower than expected voltage; the ECU interprets less air entering the engine than actual.
Common symptoms
- Loss of power
- hard starting
- rough idle
- rich mixture
- possible dark exhaust smoke
Possible causes
- Heavily contaminated MAF sensor
- signal wire shorted to ground
- loose connector
- extremely clogged air filter
- vacuum leaks
Initial recommendation
Clean MAF sensor, inspect wiring harness and connector, check for vacuum leaks and air filter condition.
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 P0102 with your vehicle's actual symptoms for more complete diagnostic guidance.
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