P0011: A Camshaft Position - Timing Over-Advanced or System Performance Bank 1
What Does P0011 Mean?
P0011 is a diagnostic trouble code indicating: A Camshaft Position - Timing Over-Advanced or System Performance Bank 1. This code relates to the fuel and air metering system. It has been reported in NHTSA complaints across 25 different vehicle models.
When the ECU commands the intake camshaft to a certain position but the actual position (measured by the camshaft position sensor) is more advanced than commanded, P0011 is set. 'Over-advanced' means the camshaft has rotated further than intended in the advance direction. This is often caused by oil flow issues — if the oil control valve is stuck open or oil passages are clogged with sludge, the camshaft phaser can be pushed to its maximum advance position and stuck there. The condition is worse during cold starts when oil is thick.
Common affected vehicles: Toyota Camry/Corolla (2AR-FE, 2GR-FE), Nissan Altima/Sentra (QR25DE), GM Equinox/Terrain (2.4L Ecotec), Honda Accord/Civic (K24, R20), BMW 3-Series (N20/N26), Ford Escape/Focus (EcoBoost). Toyota vehicles typically develop VVT issues around 100K-120K miles. GM Ecotec engines are notorious for timing chain stretch between 60K-120K miles, which was the subject of a class-action lawsuit. Nissan QR25DE engines commonly show VVT codes around 80K-130K miles.
**What To Expect at the Shop for P0011:** When you bring your vehicle to a mechanic for P0011, here's what a thorough diagnostic should include: (1) The technician should connect a professional scan tool and read not just the stored code, but also freeze frame data — this shows the exact conditions (RPM, coolant temp, vehicle speed, fuel trims) when the code was set. (2) They should check for related codes that may point to a root cause. (3) A visual inspection of relevant components and wiring should be performed before any parts are replaced. (4) On reputable shops, diagnostic time is typically 0.5-1.0 hours ($50-$150) before any repair work begins. (5) Be wary of shops that want to immediately replace parts based solely on the code number without performing diagnosis — codes indicate symptoms, not specific failed parts.
Symptoms of P0011
- ⚠️ check engine light
- ⚠️ rough idle
- ⚠️ hard starting
- ⚠️ poor fuel economy
- ⚠️ stalling
- ⚠️ rattling noise from engine
Common Causes
- 🔍 Low or dirty engine oil
- 🔍 Faulty VVT solenoid (stuck open)
- 🔍 Clogged oil passages to VVT actuator
- 🔍 Worn timing chain or stretched chain
- 🔍 Faulty camshaft phaser
P0011 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"TOOK MY VEHICLE IN TO FORD DEALER DUE TO CHECK ENGINE LIGHT STUCK ON. DIAGNOSTICS PULLED 2 CODES, P0011 & P0012. THESE 2 CODES ARE MAJOR ENGINE PROBLEMS!! BOTH SOLENOIDS NEED TO BE REPLACED, AND POSSIBLY HAVE TO REPLACE BOTH CYLINDER HEADS AND CAM SHAFTS IF HEAD AND CAMSHAFTS SHOW WEAR = THUS A VER"
— Ford Escape owner, 04/02/2013
"WHILE PULLING INTO DRIVEWAY AT LOW SPEED ENGINE STARTED SURGING AND WOULD NOT SLOW. SHIFTING TRANSMISSION INTO NEUTRAL ALLOWED VEHICLE TO BE STOPPED. ENGINE CONTINUING SURGING UNTIL TURNED OFF. MECHANIC FOUND CODES P0011 INTAKE CAMSHAFT POSITION TIMING OVER-ADVANCED (BANK 1) AND P0016 CRAFTSHAFT P"
— Ford Escape owner, 12/12/2017
"The contact owns a 2016 Ford Fusion. The contact stated that while driving at approximately 67 MPH, the vehicle started to sputter. The vehicle inadvertently decelerated while the accelerator pedal was depressed but the vehicle failed to accelerate over 15 MPH. The contact veered the vehicle off the"
— Ford Fusion owner, 06/21/2023
Source: NHTSA Complaints Database
Most Reported Vehicles for P0011
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | CHEVROLET EQUINOX | |
| 2 | HYUNDAI SONATA | |
| 3 | GMC TERRAIN | |
| 4 | CHEVROLET MALIBU | |
| 5 | CHEVROLET TRAVERSE | |
| 6 | HYUNDAI TUCSON | |
| 7 | NISSAN MAXIMA | |
| 8 | HYUNDAI ELANTRA | |
| 9 | KIA SOUL | |
| 10 | VOLKSWAGEN JETTA | |
| 11 | FORD ESCAPE | |
| 12 | CHEVROLET SILVERADO | |
| 13 | CHEVROLET CRUZE | |
| 14 | KIA OPTIMA | |
| 15 | KIA SELTOS |
P0011 Reports by Vehicle
Detailed NHTSA complaint analysis for each vehicle model.
Diagnostic Tips
- Scan all modules, save freeze-frame data, and clear unrelated history codes before focusing on P0011.
- Confirm whether companion codes are present first; they often identify the root cause sooner than the headline DTC.
- Prioritize inspection around engine and the most common failure path for this code family.
- Compare commanded vs actual cam/crank angle at idle and during light acceleration to detect actuator or phaser drift.
- After each repair step, complete one drive cycle and verify readiness monitors instead of judging success after a quick idle test.
- If the code keeps returning on high-incidence platforms (for example CHEVROLET EQUINOX), check TSB patterns and wiring/connector fitment before major part replacement.
Common Mistakes to Avoid
- ❌ Skipping freeze-frame review and losing the exact RPM/load conditions when the fault set.
- ❌ Replacing cam sensors before validating oil condition/pressure and actuator control performance.
- ❌ Clearing P0011 and returning the car before monitors complete — this often creates repeat visits.
- ❌ Treating intermittent wiring or connector faults as permanent component failure without wiggle testing.
Frequently Asked Questions
Is P0011 serious?
Can P0011 cause engine damage?
What's the most common fix for P0011?
How long do VVT solenoids last?
Can I use synthetic oil with VVT engines?
Reported Repair Costs for P0011
Based on 15 owner-reported repair costs from NHTSA complaints.
⚠️ These are owner-reported costs, not estimates. Actual costs vary by location, labor rates, and root cause. Source: NHTSA complaints database.
What To Do Next
Possible Fixes
- 🔧 Change engine oil and filter with correct weight
- 🔧 Replace VVT solenoid
- 🔧 Clean VVT actuator oil passages
- 🔧 Replace timing chain and phaser
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.