Toyota P0011

VVT-i over-advanced on Toyota 1ZZ/2AZ/2GR — the OCV filter clogs with sludge from extended oil changes.

Toyota P0011 — VVT-i over-advanced on Toyota 1ZZ/2AZ/2GR — the OCV filter clogs with sludge from extended oil changes. Typical UK independent garage cost: £140–£600.

What actually causes P0011 on a Toyota

Toyota's VVT-i system uses oil pressure to advance the intake cam via a sprocket-mounted actuator. The OCV (oil control valve) sits in the cylinder head and contains a fine mesh filter. When that filter blocks with oil sludge — common on cars run on 15,000-mile intervals — oil flow to the actuator falls and the ECU logs P0011 because commanded advance can't be achieved. The 2AZ-FE is particularly prone due to head gasket weeps mixing coolant with oil.

Toyota engines that log P0011

• 2AZ-FE 2.4 (Avensis, RAV4, Auris)
• 2GR-FE 3.5 V6 (RAV4, Lexus RX350)
• 1ZZ-FE 1.8 (Corolla, Avensis)
• 1NR/2NR (Yaris, Auris 1.3/1.5)

How we diagnose P0011 on a Toyota

1. Drain the oil and inspect for sludge or milkiness — black sludge points at OCV filter, milky points at 2AZ head gasket
2. Remove the OCV (usually accessible top of head, single bolt), pop the small screen filter out and clean in brake cleaner
3. Test OCV operation with 12V — should hear/feel the spool move freely
4. Replace OCV filter (Toyota part, ~£15) and fresh oil/filter to correct spec
5. Clear codes, road test and recheck cam advance error — should sit within ±2°

The common misdiagnosis to avoid

Garages quote for a new VVT-i actuator (£400+) when 90% of Toyota P0011 codes clear with a £15 OCV filter and a fresh oil change. Always try the cheap fix first.

Toyota P0011 repair cost in the UK

Expect £140–£600 including parts and labour at an independent garage. Main-dealer quotes on Toyota are usually higher for the same job, and the spread exists because the cheap cause and the expensive cause throw the same code — pay for the diagnosis before you pay for parts.

Bob's workshop tip

If the OCV filter comes out caked, recommend a 3,000-mile follow-up oil change to flush the rest of the head — a single oil change won't shift years of sludge in one go.

Codes usually seen alongside P0011 on Toyota

• P0014
• P0020
• P0341

Symptoms drivers report with P0011

• Engine rattles like a 'bag of nails' for 3 seconds on a cold start.
• The car felt fine on the motorway, but now it stalls every time I stop at a roundabout.
• Noticeable 'flat spot' or hesitation when trying to overtake in 3rd gear.
• Lumpy, hunting idle that makes the gearstick vibrate.
• Fuel economy has tanked—getting about 10mpg less than usual.

Repairs that clear P0011

• Engine flush and oil change
• Replace VVT solenoid
• Replace cam phaser if needed

For the generic, all-makes explanation of this code — meaning, every known cause and UK cost bands — see our P0011 guide.