P0011 on a Subaru: Causes, Fixes & Repair Cost

🟠 Moderate severity · drivable

You can usually drive a Subaru to a shop with P0011, but check the oil level first, and if the engine runs rough or the light flashes, have it towed.

What P0011 means on a Subaru

On a Subaru, P0011 means the AVCS variable valve timing system is advancing the intake camshaft on bank 1 further than the computer commanded. The camshaft is ahead of where it should be, usually because the AVCS oil control solenoid is sticking or oil pressure is low.

Is P0011 common on Subarus?

P0011 shows up on Subaru boxer engines in the Outback, Forester, Impreza, and Legacy. AVCS oil control solenoids can clog with dirty oil, and boxer engines can burn some oil at high mileage, so a low oil level is a common trigger.

Commonly reported on: Outback, Forester, Impreza, Legacy.

Symptoms

Check engine light on
Rough idle or hesitation, especially when cold
Reduced fuel economy
Engine feels flat on acceleration

Common causes

most common: Dirty or failing AVCS oil control solenoid
common: Low oil level (boxer engines can use oil)
common: Overdue oil changes
less common: Worn AVCS actuator
less common: Timing chain stretch

How to fix it

Fix	DIY?	Typical cost
Change the oil and filter, and top up to the full mark	Yes	$40–100
Clean or replace the AVCS oil control solenoid	Yes	$80–250
Replace the AVCS actuator if it is worn	Mechanic	$400–1000
Have oil consumption checked if the code returns	Mechanic	$100–250