P0011: Intake camshaft timing over-advanced or system performance (bank 1)

What does it mean?

System

Powertrain (engine and transmission)

Subsystem

Fuel and air metering, camshaft timing

Type of code

Generic code: means the same on every make.

How urgent?

Have it checked soon. You can usually still drive, but avoid long trips and heavy loads.

Possible causes

• Cam phaser or control valve (often dirty oil)
• Stretched timing chain or jumped belt
• Sensor or connector
• Low oil level or the wrong oil

Tip: don’t just clear the code. Clearing a code doesn’t fix the cause. It often comes back, and the stored data that helps us find the cause is then gone.