P0011 on a Mazda: Causes, Fixes & Repair Cost

🟠 Moderate severity · drivable

You can usually drive a Mazda 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 Mazda

On a Mazda, P0011 means the VVT 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 oil control valve is sticking or oil pressure is low.

Is P0011 common on Mazdas?

P0011 appears on Mazda SkyActiv engines in the Mazda3, Mazda6, and CX-5. A dirty oil control valve and low oil level are the usual causes, and overdue oil changes can make the VVT system slow to respond.

Commonly reported on: Mazda3, Mazda6, CX-5.

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 sticking oil control valve
common: Low oil level or low oil pressure
common: Overdue oil changes
less common: Worn VVT actuator
less common: Timing chain stretch

How to fix it

Fix	DIY?	Typical cost
Change the oil and filter with the correct grade	Yes	$40–100
Clean or replace the oil control valve	Yes	$60–250
Replace the VVT actuator if it is worn	Mechanic	$300–800
Have oil pressure checked if the code returns	Mechanic	$100–250