P0012Medium urgency

Camshaft Position A Timing Over-Retarded (Bank 1)

Engine · Variable Valve Timing

⚠️ Safe to drive short-term — fix within 2 weeks.

What this means

The intake camshaft on Bank 1 is retarded beyond what the ECU commanded. Causes rough idle, poor fuel economy, and reduced power. Most often caused by a faulty VVT solenoid or oil flow restriction.

Likely causes

Faulty VVT oil control valveMost common
Low oil level or pressureMost common
Camshaft phaser wornCommon

Estimated repair cost

VVT solenoid replacement$100 – $350

Oil change + flush$60 – $150

Camshaft phaser$400 – $1,200

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Frequently asked questions

What does P0012 mean?

The intake camshaft on Bank 1 is retarded beyond what the ECU commanded. Causes rough idle, poor fuel economy, and reduced power. Most often caused by a faulty VVT solenoid or oil flow restriction.

Is P0012 serious?

Safe to drive short-term — fix within 2 weeks.

How much does it cost to fix P0012?

Repair costs for P0012 range from $100 – $350 depending on the root cause and your vehicle.

Can I drive with P0012?

You can drive short distances but should have it repaired within 1-2 weeks to prevent further damage.