P0101 — Mass Air Flow Circuit Range/Performance
Reviewed1 source
1 source
- Official data (NHTSA)official_feed
What P0101 means
Caution — monitor closely
MAF readings fall outside the expected range for current RPM, though the signal itself is present (unlike P0102/P0103, which indicate a circuit fault).
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General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.
Common causes
- Contaminated MAF sensor
- Air leak downstream of the sensor
Symptoms
- Повышенный расход топлива
- Hesitation on acceleration
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