P0011 Code: "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
🟠 Moderate severity · drivable
Drivable, but the variable valve timing isn't working correctly and is often caused by low or dirty oil, so address it soon.
What P0011 means
The variable valve timing (VVT) system is advancing the intake camshaft timing on bank 1 further than the computer commanded. The camshaft is ahead of where it should be, usually because the VVT oil control can't move or hold it correctly.
Symptoms
- Check engine light is on
- Rough idle
- Reduced fuel economy
- Possible rattling at start-up
- Slight loss of power
Common causes
- most common: Low or dirty engine oil
- common: Faulty or clogged VVT oil control solenoid
- less common: Worn timing chain or VVT actuator
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Change the engine oil and filter with the correct viscosity | Yes | $40–80 |
| Replace the VVT oil control solenoid | Yes | $50–200 |
| Replace a worn timing chain or VVT actuator | Mechanic | $1000–2500 |
Frequently asked questions
Can I drive with a P0011 code?
Yes, but get it checked soon. Dirty or low oil is often the cause, and running that way can eventually damage the timing components.
What is the most common cause of P0011?
Low or dirty engine oil. The VVT system relies on oil pressure, so an oil change often clears it.
Is P0011 expensive to fix?
Often not — an oil change is $40–$80 and a VVT solenoid is $50–$200. It's only expensive if the timing chain needs replacing.
Related codes
P0016
P0016 Code: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
P0021P0021 Code: "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.