Possible Causes
- The engine control module has determined failures where some circuit quantity, reported via serial data, is above a specified range
- Manifold absolute pressure and temperature sensor circuit, for short circuit to power
- Intake manifold air leak
- Throttle adaption failure
- Blocked air filter
- Engine breather leakage
- Carbon obstruction around throttle blade
- Manifold absolute pressure and temperature sensor failure
- Damaged catalytic converter