Possible Causes
- Electrical Cause
- Mechanical Cause
- Prioritized List of Possible Causes
- Engine misfire
- Fuel injector circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Spark plug installation
- Spark plug condition
- Fuel injector seal leaking
- Intake manifold seal leaking
- Fuel injector blocked, damaged, internal failure
- Fuel rail blocked, damaged
- Ignition coil circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Ignition coil internal failure
- Continuously variable valve lift system fault