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Fuel & air metering

P0011: "A" Camshaft Position Timing Over-Advanced or System Performance Bank 1

Severity: Moderate

Drivable, but it can cause more damage or poor economy. Get it checked within days.

What P0011 means

The intake cam on bank 1 is more advanced than commanded, or is not following the command.

Symptoms

  • Rough idle
  • Poor performance

Common causes

Most likely first

  1. 1Low or wrong-viscosity oil
  2. 2Sticking VVT solenoid
  3. 3Worn cam phaser
  4. 4Timing chain stretch

How we diagnose it

  • Check oil level and spec first
  • Command VVT and watch cam angle response

Every vehicle sets codes under its own conditions. We check the factory diagnostic steps and service bulletins for your VIN, so the repair targets the actual cause.

Ready when you are.

Book online in two minutes or call the shop. You get a written estimate before any work begins.