Possible Causes
- The engine control module measured a signal voltage below a specified range but not necessarily a short circuit to ground, gain low
- Blocked air filter
- Other related DTCs
- Air induction system, incorrectly installed components, loose hose clips or air leakage
- Mass air flow sensor contamination by oil or debris
- Electric throttle blade contamination by oil or debris
- Mass air flow sensor circuit, short circuit to ground, short circuit to power, open circuit, high resistance
- Throttle adaption failure