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P0011 P0xxx · 동력계 (P) 심각도 중간
Intake Camshaft Position Timing — Over-Advanced (Bank 1)
The actual intake cam angle is more advanced than the commanded target for a set time. Usually a sticking actuator, oil pressure problem, or a stretched timing chain rather than an electrical fault.
심각도 안내: 중간 — 주행성 또는 배출가스에 영향, 이번 주 안에 점검하세요
확인할 수 있는 증상
- Rough idle
- Rattle on cold start
- Poor acceleration
- Possible misfire codes alongside
주요 원인
가능성이 높은 순서로 정렬되어 있습니다. 위부터 확인하세요.
- 1 Sticking VVT actuator from sludge or varnish
- 2 Low oil pressure or wrong viscosity
- 3 Stretched timing chain / jumped tooth
- 4 Faulty camshaft position sensor giving a skewed reference
점검 방법
비용이 적고 침습적이지 않은 항목부터 — 대부분의 코드는 부품 문제가 아닙니다.
- ✓ Compare commanded vs actual cam angle in live data while revving to 2,500 rpm.
- ✓ Verify oil pressure with a mechanical gauge — do not trust the dash light alone.
- ✓ Inspect the timing chain for stretch; check cam/crank correlation with the scope if available.
- ✓ Swap-test the cam sensor only after oil and mechanical checks pass.
수리 방법
- Oil system service; flush if sludge is present
- Replace the VVT actuator or solenoid
- Timing chain and tensioner replacement if correlation is out
P0011 — 자주 묻는 질문
Why does it only appear when the engine is hot? +
Hot oil is thinner; a worn actuator or low pressure cannot hold the commanded angle once viscosity drops.
Will an oil change clear it? +
Sometimes. If the code returns within a few hundred kilometres, suspect a mechanical fault instead.