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P0011 P0xxx · パワートレーン (P) 重大度中
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.
重大度の目安： 中 — 走行性または排出ガスに影響。今週中に点検を予約してください
確認できる症状
- Rough idle
- Rattle on cold start
- Poor acceleration
- Possible misfire codes alongside
主な原因
可能性の高い順に並んでいます。上から順に確認してください。
- 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
点検・修理の手順
費用が安く侵襲の小さい項目から — これらのコードの大半は部品の問題ではありません。
- ✓ 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.
修理の選択肢
- Oil system service; flush if sludge is present
- Replace the VVT actuator or solenoid
- Timing chain and tensioner replacement if correlation is out
P0011 — よくあるご質問
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.