DTC P0101: Mass Air Flow (MAF) Sensor Circuit Performance Problem: Condition

DTC is set when intake air flow measured by MAF sensor is less than predetermined intake air flow. MIL is illuminated when Powertrain Control Module (PCM) detects malfunction during 2 consecutive drive cycles. Possible causes are:

• Plugged or leaking air intake system.
• MAF sensor malfunction.
• PCM malfunction.