P0011 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)
Actual intake camshaft timing on bank 1 is more advanced than the engine computer commanded.
Common causes
- Low engine oil level or wrong oil viscosity
- Sticking camshaft timing solenoid
- Worn timing chain or stretched chain
- Clogged oil passage or solenoid screen
Symptoms
- Check engine light
- Rough idle
- Hard starting
- Poor fuel economy
What to check
- Check oil level and condition first
- Inspect the solenoid screen for debris
- Compare commanded and actual cam angle with a scan tool
- Check timing chain stretch data if available
Manufacturers may add their own detail to generic codes. If your vehicle shows a different description for P0011, follow the service information for that make and model.
Related codes
- P0010 Camshaft Position Actuator "A" Circuit (Bank 1)
- P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1)
- P0013 Camshaft Position "B" Actuator Circuit (Bank 1)
- P0014 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1)
- P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
- P0017 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)