DTC P0101: Mass Airflow (MAF) Performance Problem: Condition
WARNING: This page is about a different car, the 1999 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
DTC is set when intake air flow measured by MAF sensor does not agree with calculated intake air flow calculated by Powertrain Control Module (PCM) using manifold absolute pressure, barometric pressure and engine speed. MIL is illuminated when PCM detects malfunction during 2 consecutive drive cycles. Possible causes are:
- Plugged or leaking air intake system.
- MAF sensor or circuit malfunction.
- Manifold Absolute Pressure (MAP) sensor or circuit malfunction.
- PCM malfunction.