What P0011 means
Diagnostic Trouble Code (DTC) P0011 stands for "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1). This is a generic OBD2 diagnostic trouble code indicating that the engine computer (ECU) has registered an operational anomaly in the powertrain (p) systems.
When this error registers, the ECU records a freeze frame of sensor data and lights up the Check Engine Light on your dashboard to notify the operator of a system fault.
Symptoms of OBD2 Code P0011
When code P0011 is active, your car might exhibit the following common symptoms:
- Check Engine Light on
- Hard starting or engine stalling
- Rough idling and poor fuel economy
- Rattling noise from the timing cover area
Common Causes of Code P0011
Faults that trigger this code typically include:
- Cause 1: Low engine oil level or dirty engine oil (clogs VVT solenoids)
- Cause 2: Faulty Variable Valve Timing (VVT) Control Solenoid
- Cause 3: Stretched timing chain or jumped timing belt
- Cause 4: Failed camshaft phaser
Can you drive with a P0011 code?
No. Incorrect camshaft timing can lead to engine power loss, rough idling, misfires, or internal mechanical damage in interference engines if the timing belt or chain has jumped.
Expected Repair Cost Band
Oil change ($50 - $100). VVT solenoid replacement ($100 - $300). Timing chain/belt replacement ($800 - $2,000).
Related Diagnostic Trouble Codes
If you have scanned multiple codes, see these related guides for troubleshooting context:
Frequently Asked Questions
Yes! VVT systems rely on hydraulic oil pressure to adjust timing. Low or dirty oil is the primary cause of P0011.