P0011

Q: What does OBD2 code P0011 mean?

P0011 means: Camshaft Position Timing Over-Advanced Bank 1. The camshaft timing is more advanced than commanded by the ECM on Bank 1. Often caused by dirty oil or a faulty VVT solenoid.

Camshaft Position Timing Over-Advanced Bank 1

The camshaft timing is more advanced than commanded by the ECM on Bank 1. Often caused by dirty oil or a faulty VVT solenoid.

SeverityCritical

CategoryEngine

Est. Repair Cost$100–$800

Code TypePowertrain

DIY RepairProfessional

⚡ Common Causes

›Low or dirty engine oil
›Faulty VVT solenoid
›Stuck or blocked oil control valve
›Stretched timing chain

⚠️ Symptoms

›Hard start
›Rough idle
›Rattling on cold start
›Poor fuel economy
›Check engine light

✅ How to Fix — Step by Step

Step 1:Change engine oil and filter first
Step 2:Clean or replace VVT solenoid
Step 3:Inspect oil control valve screen for debris
Step 4:Check timing chain for stretch

💡 Pro Tip: Always try an oil change first — this code often clears with fresh oil of the correct viscosity.

Repair Cost Estimate

Full Repair Estimate

$100–$800

DIY Possible?

PRO

Severity

Critical

Frequently Asked Questions

What does OBD2 code P0011 mean?+

P0011 stands for Camshaft Position Timing Over-Advanced Bank 1. The camshaft timing is more advanced than commanded by the ECM on Bank 1. Often caused by dirty oil or a faulty VVT solenoid.

What causes code P0011?+

Low or dirty engine oil; Faulty VVT solenoid; Stuck or blocked oil control valve; Stretched timing chain

How do I fix code P0011?+

Change engine oil and filter first; Clean or replace VVT solenoid; Inspect oil control valve screen for debris; Check timing chain for stretch

How much does it cost to fix P0011?+

Estimated repair cost for P0011 is $100–$800.

Is P0011 DIY-friendly?+

P0011 typically requires professional equipment and a qualified mechanic.