Parts
$30–400
P0011 — Camshaft Timing (Bank 1) Over-Advanced / Performance
CAUTIONIs it safe to drive? The variable valve timing isn't hitting its target. Driveable but you'll feel rough idle or lost power; the usual cause is oil-related.
What P0011 means
The intake cam timing on Bank 1 is more advanced than commanded, or the VVT system can't reach its target. These systems run on oil pressure through a control solenoid.
Most likely causes (in order)
- Dirty oil / overdue oil change (clogs the VVT solenoid screen)
- Stuck or failing oil-control / VVT solenoid
- Low oil pressure
- Worn cam phaser
- Wiring to the solenoid
Symptoms you might notice
- Rough idle
- Power loss, especially low-end
- Sometimes a rattle on start
What to check first
Change the oil and filter first — dirty oil is the most common trigger. Then check/clean the oil-control valve and verify oil pressure.
Repair cost & difficulty
Labor
0.5–4 hr
Difficulty
DIY-friendly
What P0011 means on specific makes
Hyundai / Kia CAUTION
Generic code, but a Hyundai/Kia staple: the intake cam (CVVT) timing is off, usually because the oil control valve (OCV) is clogged with sludge or the CVVT phaser is worn. Strongly tied to oil maintenance on GDI engines.
- Clogged/sticking Oil Control Valve / VVT solenoid ($40-120)
- Dirty or low engine oil / sludge
- Worn CVVT phaser/actuator ($150-400)
- Timing chain stretch (often with P0016)
Check first: Clean or replace the OCV and do an oil change first — cheap and often the fix. If it returns with P0016, suspect chain/phaser.
Source: Hyundai Forums P0011/P0014; Go-Parts Kia Soul P0011