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P0011 fault code: what it means

P0011: Bank 1 intake cam timing is more advanced than the engine computer asked for, or the VVT system is slow to respond.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. low, old or wrong-grade engine oil
  2. sticking VVT oil control solenoid
  3. stretched timing chain
  4. worn cam phaser

P0011 by make

Audi

Intake camshaft timing is more advanced than the engine computer asked for on bank 1. Power loss is common.

Usual causes: faulty camshaft adjuster valve (N205); stretched timing chain or worn tensioner; low or dirty engine oil

BMW

Intake cam timing (VANOS) not reaching the position the DME asked for. On BMW N-series petrol engines it is very often a sticky VANOS solenoid from long oil change intervals.

Usual causes: intake VANOS solenoid clogged by old oil; low or degraded engine oil / long service intervals; stretched timing chain or worn chain guides (N20); loose VANOS unit bolts (2010-12 N-series recall)

Ford

Intake cam timing over-advanced, bank 1: the variable cam timing is further ahead than commanded. Usually oil related.

Usual causes: low, old or wrong-grade engine oil; VCT solenoid blocked or failed; VCT wiring or loose plug; cam phaser or timing chain wear (less likely)

Haval

Intake cam timing over-advanced or slow to respond on Haval 1.5T/2.0T petrols.

Usual causes: sticking VVT oil control valve; low or old engine oil; worn cam phaser

Honda

Intake cam timing (VTC) is more advanced than the ECU asked for. On Honda K-series and 1.5 turbo engines the oil-fed VTC actuator or its oil control valve is not following commands.

Usual causes: low, old or sludged engine oil; blocked VTC oil control valve or its filter screen; worn VTC actuator (locking pin); stretched timing chain

Hyundai

Intake camshaft timing more advanced than the ECM asked for (CVVT). Common on Theta II, Nu and Beta engines.

Usual causes: low or dirty engine oil; stuck or clogged intake oil control valve (CVVT solenoid) or its filter screen; stretched timing chain or worn tensioner; faulty intake cam phaser

Jeep

Intake cam timing over-advanced or slow to respond (bank 1). Rough idle or ticking on 3.6 Pentastar.

Usual causes: sticking oil control (VVT) solenoid; low or old oil; worn cam phaser

Kia

Intake camshaft timing more advanced than commanded (CVVT). Common on Kia Nu 2.0 and Theta II 2.4.

Usual causes: low or dirty engine oil; clogged or stuck intake oil control valve (CVVT solenoid); stretched timing chain or tensioner bleed-down; faulty intake cam phaser

Lexus

Intake cam timing over-advanced or not following the ECM (bank 1). Lexus VVT-i moves the cam with oil fed through an oil control valve.

Usual causes: low, dirty or wrong-grade engine oil; sticking or failed VVT oil control valve (OCV); faulty VVT-i cam gear/phaser

Mazda

Intake cam timing more advanced than target. SkyActiv-G uses an electric intake VVT motor; older MZR engines use an oil-fed actuator. Can also point to a jumped or stretched timing chain.

Usual causes: electric VVT actuator/motor stuck (SkyActiv-G); low, old or wrong engine oil / sticking oil control valve (older MZR engines); loose, stretched or jumped timing chain; VVT relay, fuse or wiring fault

MG

Intake cam timing over-advanced or slow to respond on MG ZS/HS/MG3 petrols.

Usual causes: sticking VVT oil control valve; low or old engine oil; worn cam phaser

Mini

Intake cam timing not reaching the position the DME asked for. On Mini Prince engines old oil and a worn timing chain are common reasons.

Usual causes: intake VANOS solenoid clogged by old oil; low or degraded engine oil / long service intervals; stretched timing chain or failed tensioner (N12-N18); VANOS adjuster sprocket fault

Mitsubishi

Intake cam timing (MIVEC) more advanced than commanded, bank 1 (4B11/4B12/4J1x petrol).

Usual causes: low, dirty or wrong-grade engine oil; sticking MIVEC oil control valve; blocked oil control valve screen; stretched timing chain

Nissan

Intake cam timing (bank 1) over-advanced or not following the ECM. Common on QR25 and MR20 when oil is old or low.

Usual causes: low or dirty engine oil; intake valve timing control solenoid sticking; timing chain stretch; cam or crank sensor fault

Skoda

Intake camshaft timing is more advanced than the engine computer asked for on bank 1. Power loss is common.

Usual causes: faulty camshaft adjuster valve (N205); stretched timing chain or worn tensioner; low or dirty engine oil

Subaru

Intake cam timing (AVCS) on bank 1 (right/passenger head) is more advanced than the ECU asked for. Common on FB, FA and EJ engines with AVCS.

Usual causes: low, dirty or wrong-grade engine oil (FB engines often burn oil); sticking or sludged AVCS oil control valve; blocked oil control valve filter screen; stretched timing chain on FB/FA engines

Suzuki

Intake cam timing over-advanced or slow to respond. On Suzuki M-series and K-series engines usually the VVT oil control valve.

Usual causes: sticking oil control valve (OCV); low or old engine oil; blocked OCV oil filter screen; worn VVT actuator

Toyota

Intake cam timing over-advanced or not following the ECM (bank 1). Toyota VVT-i uses oil pressure through an oil control valve to move the cam.

Usual causes: low, dirty or wrong-grade engine oil (2AZ-FE oil burning); sticking or failed VVT oil control valve (OCV); blocked OCV filter screen; faulty VVT-i cam gear/phaser

Volkswagen

Intake camshaft timing is more advanced than the engine computer asked for on bank 1. Power loss is common.

Usual causes: faulty camshaft adjuster valve (N205); stretched timing chain or worn tensioner; low or dirty engine oil

Volvo

Intake cam timing over-advanced or slow to respond.

Usual causes: sticking VVT (CVVT) solenoid; low or old oil; faulty cam timing unit

What the repair usually costs

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Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.