Acura DTC

Acura DTC P0101


Acura DTC




Mass Airflow (MAF) Sensor Circuit Range Performance Problem


Elapsed time after engine start 5 seconds, engine coolant temperature 156 ºF (69 ºC), engine speed 650-2,100 rpm. No active DTCs P0102, P0103, P0107, P0108, P0112, P0113, P0117, P0118, P0171, P0172, P0174, P0175, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0335, P0339, P0340, P0341, P0344, P0401, P0404, P0443, P0496, P0497, P0506, P0507, P1128, P1129, P145C, P2413, P2646, P2647, P2648, P2649. The difference between the amount of intake air measured by the MAF sensor and the amount of intake air calculated from the MAP sensor output is out of the normal area for at least 10 seconds.


  • Dirty air cleaner elementFaulty PCV valve or hoseFaulty EVAP canister purge valveVacuum leaks at the Throttle body, Intake manifold, Brake booster Cracked or loose Air Intake DuctPoor connections or loose terminals at the MAF sensor IAT sensor and the PCMFaulty MAF sensor IAT sensorFaulty PCM

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