From Wikifixx
DTC P0101
General Overview
Mass or Volume air flow circulation range/performance
Symptoms
- Loss Of Power
- Erratic Idle
Possible Causes
- Mass Air Flow Sensor (G70) faulty
- Air Leak(s) after Mass Air Flow Sensor (G70)
- Intake Air Filter dirty/faulty
- Ground Spots corroded or Paint Residue
- Wiring and/or Connections from/to Mass Air Flow Sensor (G70) faulty
Remedies
- Check Intake Air Filter
- Check Mass Air Flow Sensor (G70)
- Check Ground Spots
- Check Wiring and/or Connections from/to Mass Air Flow Sensor (G70)