OBD codes / P0011
P0011
ModerateCamshaft Position Timing Over-Advanced (Bank 1)
P0011 is usually drivable short-term, but don't ignore it — if the cause is timing-chain or phaser wear it can get worse, and running with the wrong cam timing hurts performance and economy. Check oil level and condition immediately (top up or change it); that alone resolves many cases.
What this code means
Modern engines vary the camshaft timing on the fly to improve power and economy, using oil pressure routed through a control solenoid (often called a VVT, VCT, or OCV). P0011 means the camshaft timing on Bank 1 is more advanced than commanded — the computer can't pull it back. The most common and cheapest cause is oil: low level, the wrong viscosity, or dirty/overdue oil clogging the small passages. Next is a stuck VVT solenoid or its screen. Less often it's a stretched timing chain or worn cam phaser. Because oil is so often the cause, an oil change is a smart first step.
Symptoms you might notice
- Rough idle or stalling
- Loss of power or hesitation
- Rattle or noise from the front of the engine at start-up
- Reduced fuel economy
- Check-engine light
What it costs to fix
Typical range: $60–$1,500 · about ~0.3–6 hrs of labor
| If the cause is… | Part | Labor |
|---|---|---|
| Oil change (when low/dirty oil is the cause) | $30–$100 | ~0.3–0.6 hrs |
| VVT/VCT solenoid (oil-control valve) | $30–$150 | ~0.5–2 hrs |
| Camshaft phaser | $150–$500 | ~3–6 hrs |
The low end assumes the cause is simply low or dirty oil — which genuinely does fix a fair number of these, but isn't guaranteed. The typical repair is the VVT solenoid (modest); a worn phaser or stretched timing chain is the major, high-end job. Get a chain/phaser repair diagnosed before committing.
The price swings on which cause it turns out to be — so confirm the cause before paying. Diagnose P0011 for my exact vehicle →
How to fix P0011
Moderate — doable at home with common tools and patience
- Check the oil level and condition first
Pull the dipstick: the variable valve timing system runs on oil pressure, so a low level or black, sludgy, overdue oil can hold the bank 1 intake cam advanced. If the oil is low, dirty, or the wrong viscosity, change it using exactly the grade printed on the oil cap or in the manual, clear the code, and drive for a few days — this alone genuinely fixes a fair share of P0011s.
- Clean or replace the bank 1 intake VVT solenoid
Locate the intake-cam oil-control solenoid on bank 1 (usually on or near the valve cover or front of the head), remove its single bolt, and pull it out. Inspect the fine mesh screen for sludge — clean it with parts cleaner or simply replace the solenoid, which is a modest part.
- Check the solenoid's connector and wiring
While the solenoid is out, inspect its electrical connector for oil intrusion and bent pins, and the short harness lead for damage. A solenoid the computer can't command electrically behaves exactly like a stuck one.
- Investigate the phaser and timing chain if the code returns
Listen for a rattle from the front of the engine on cold starts and watch cam/crank correlation data on a capable scanner. If fresh oil and a good solenoid don't hold the code off, a worn cam phaser or stretched timing chain is likely — get a proper shop diagnosis before authorizing that repair, because it's the expensive end of this code.
DIY or shop? An oil change and a solenoid swap are both realistic home jobs on most engines — the solenoid is typically one bolt and one connector. The line into shop territory is drawn at the phaser and timing chain: that repair means opening the front of the engine, setting timing precisely, and hours of labor. Do the cheap oil-and-solenoid steps yourself, then pay for a diagnosis rather than parts if the code survives.
Tools for the DIY steps: OBD-II scanner · Socket set · Oil and filter (correct viscosity for your engine) · Oil filter wrench and drain pan · Parts cleaner spray
Not sure which step applies to your car? Get the likely cause for your exact vehicle before buying anything for P0011.
P0011 on specific vehicles
The likely causes shift by model. We’ve written up the patterns we see most:
Frequently asked
Can I drive with P0011?
Short-term usually yes, but address it soon. If it's just oil, it's trivial; if it's a worn phaser or timing chain, continued driving can make it worse. Check your oil level and condition right away.
Can low oil cause P0011?
Yes — this is one of the most common causes. The variable-timing system runs on oil pressure through tiny passages, so low, dirty, or wrong-viscosity oil can throw this code. An oil change with the correct grade is a smart, cheap first move.
What is a VVT solenoid and is it expensive?
It's the oil-control valve that routes pressure to advance or retard the cam timing. The part is usually inexpensive; replacing or cleaning it is a modest job on most engines. It's the typical next step after ruling out oil.
How much does it cost to fix P0011?
Anywhere from an oil change to a major repair. Oil and solenoid fixes are cheap-to-modest; a camshaft phaser or timing chain is a big labor job. Diagnose the cause before assuming the worst.
Seeing P0011 on your car? Get a diagnosis specific to your exact year, make and model.
Diagnose P0011 for my vehicleRelated trouble codes
Don’t have a scanner yet? A ~$25 Bluetooth adapter reads codes like P0011 from your phone — see our honest guide to the best OBD2 Bluetooth adapters.
Generic OBD-II reference. Manufacturer-specific behavior varies — confirm with a scan tool and, for safety-related codes, a professional inspection.