P0011 on Kia: How to Diagnose & Fix
Intake Camshaft Position Timing - Over-Advanced (Bank 1)
2 Kia models · 3 documented issues · $90-$1,400 repair
P0011 on Kia by model: symptoms, diagnosis and fix
On BD-generation Fortes the intake camshaft phaser is commanded by an oil control valve (OCV/CVVT solenoid) mounted in the front of the head. Because the 2.0 Nu is a known oil consumer, the sump often runs low and the remaining oil gets heat-cycled and sludgy; the fine screen and small orifices in the OCV clog, or the solenoid fails electrically. The ECM then commands a phaser position it cannot achieve and sets P0011 - 'A' Camshaft Position Timing Over-Advanced, Bank 1. Drivers get a rough or hunting idle, a stumble off idle, sometimes a stall at a stop, and a measurable fuel economy loss. Left alone, phaser and chain wear accelerate. This is specifically a BD 2.0 Nu complaint tied to that engine's oil consumption; it is not the same fault as the crankshaft position sensor hot-restart stall.
Common Symptoms
- Check engine light with P0011
- Rough or hunting idle
- Stalling at a stop
- Hesitation on light acceleration
- Reduced fuel economy
- Ticking from the front of the engine
How to Fix
Check and correct the oil level first, then change oil and filter with the specified grade - a surprising number of P0011 cases clear on fresh oil alone, and if the engine was low that is the actual root cause and the consumption needs its own investigation. If the code returns, replace the intake oil control valve (a $40-$120 part, roughly an hour of labor) and clean its screen and oil gallery. Verify solenoid resistance (roughly 6.9-7.9 ohms) and that the plunger clicks on 12V before condemning it. If the code persists with a good OCV and clean oil, the cam phaser or a stretched timing chain is next. No recall applies.
Sources for this issue (3)
Nu-family Forte engines use a hydraulic timing chain tensioner that depends on oil pressure to keep the chain taut. After the car sits overnight the tensioner bleeds down, and on start-up the slack chain slaps the guides for one to five seconds until oil pressure builds - a loud metallic rattle or clatter from the timing cover end of the engine. A brief rattle is borderline normal; the problem is that on high-mileage Fortes, and especially those run on extended oil intervals or low oil (the 2.0 GDI's oil consumption makes this common), the tensioner ratchet and the plastic chain guides wear, the rattle lengthens, and eventually the chain stretches far enough to skew cam timing and set correlation codes. This is a wear-plus-oil-condition failure, distinct from the piston-ring and rod-bearing campaigns on the same engine family.
Common Symptoms
- Loud metallic rattle for 1-5 seconds on cold start
- Rattle that gets longer over months
- Chain noise on hot restart after the car sits briefly
- Check engine light with timing correlation codes
- Rough running or reduced power if timing has skewed
How to Fix
First verify oil level and condition - a low or sludged sump is the single most common cause, and topping up plus a fresh oil service with the correct viscosity often shortens the rattle immediately. If the noise persists past a few seconds or grows, replace the hydraulic chain tensioner; on higher-mileage engines do the tensioner, both chain guides and the chain as a set, because a stretched chain re-opens the slack against a new tensioner. Correlation codes (P0016/P0017) or a P0011 alongside the rattle mean the chain has already lost tension and the full kit is required. Not recall-covered.
Sources for this issue (3)
P0011 indicates the Bank 1 intake camshaft is over-advanced — the CVVT phaser is stuck or the ECM cannot control it. On the Sorento's Theta II 2.4L GDI (and Lambda V6), the overwhelming cause is a failing intake-side Oil Control Valve (OCV/VVT solenoid) that sticks open or closed, often because it is clogged with sludge from dirty or over-consumed oil, or has failed electrically (spec resistance roughly 6.9-7.9 ohms). Because the OCV depends on clean oil pressure, low oil level and extended oil-change intervals accelerate the failure. The related Bank-1 codes P0014 (exhaust over-advanced) and P0022/P0024 often appear on the same engine family.
Common Symptoms
- check engine light on
- rough idle
- hesitation or slight power loss
- occasional hard start
- minor drop in fuel economy
How to Fix
Test the Bank 1 intake OCV resistance and, as a quick DIY check, swap it with the identical Bank 2 intake OCV to see if the fault follows. Replace the failed OCV — OEM Kia is recommended, as owners report aftermarket solenoids failing quickly — and it is wise to replace intake and exhaust solenoids together. Confirm correct oil level and use the specified oil; clean sludged oil-passage screens. Verify the cam phaser if a new OCV does not clear it.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Kia 24355-2G000 intake oil-flow-control valveOEMKia 24355-2G000
Confirm VIN, MPI/GDI engine code, intake position and installed number; not
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Sources for this issue (3)
P0011 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0011 mean on a Kia?
P0011 stands for "Intake Camshaft Position Timing - Over-Advanced (Bank 1)." P0011 means the engine computer detected that the intake camshaft timing on Bank 1 is more advanced than it should be — the variable valve timing system is either over-advancing the cam or not responding correctly to commands. Modern engines use a camshaft actuator, controlled by an oil-fed solenoid, to vary valve timing for better power and efficiency. When the actual cam position stays more advanced than the computer commands (or won't move back), this code is set. It generally indicates a fault in the variable valve timing system and can cause rough idle, reduced performance, or poor fuel economy. On Kia it is documented across 2 models: Forte, Sorento.
What are the most common causes of P0011?
The most common causes of P0011 are: Stuck or faulty camshaft (VVT) oil control valve / solenoid, Low or dirty engine oil restricting actuator movement, Clogged oil control valve screen or oil passages, Faulty camshaft phaser / actuator stuck advanced, Wrong oil viscosity or overdue oil change, Wiring or connector fault to the VVT solenoid, Faulty camshaft position sensor. The specific cause varies by vehicle.
How much does it cost to fix P0011 on a Kia?
Published repair estimates on Kia range from $90 to $1,400 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0011 on a different make?
View P0011 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.