DTC code
P0011
A Camshaft Position - Timing Over-Advanced (Bank 1)
Technical guide
Symptoms
- Rough idle
- rattle on cold startup
- reduced power
- increased fuel consumption
- check engine light
Probable causes
- Stuck or slow oil control valve (OCV/VVT solenoid) due to oil sludge
- low oil pressure
- wrong oil viscosity
- timing chain slack
- faulty OCV wiring
Diagnostic steps
- Change engine oil to correct spec immediately.
- Clean or replace OCV solenoid.
- Check oil pressure.
- Check timing chain for slack/rattle.
- After oil change clear code and retest.
Brand-specific notes (Hyundai/Kia)
Hyundai/Kia · i30/i40/Tucson/Sportage/Optima · G4KD/G4KE/G4KH GDI/MPI 2.0
Symptoms
- Rough idle
- rattling on startup
- check engine light
- loss of power
- increased fuel consumption
- oil pressure related noises
Probable causes
- Stuck or slow OCV (oil control valve/VVT solenoid) due to sludge
- low oil pressure
- wrong oil viscosity
- dirty engine oil blocking OCV
- OCV wiring fault
- timing chain slack causing cam advance error
Diagnostic steps
- Change engine oil to correct spec (very important on these engines - use 5W30 or 5W20 as specified).
- Clean or replace OCV solenoid.
- Check oil pressure.
- Check timing chain for stretch/slack.
- After oil change, run engine and clear code - often resolves with fresh oil.
Cross-checked technical synthesis (QA). It does not replace the manufacturer's procedure.
Models most reported with this code (NHTSA)
Count of distinct owner complaints mentioning the code. US data — same engines, same failures.
AI here is a librarian: this page shows only what mechanics confirmed, or says “unknown”. It never suggests a diagnosis — MECCANIC interprets the code, never your car.
0 confirmed cases on P0011
Nothing confirmed yet for this code. No guess is offered on purpose.
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