Valve timing · Severity: Moderate
P0011 — Camshaft Position Timing Over-Advanced (Bank 1)
Intake camshaft position on bank 1 is more advanced than the ECU commanded.
Common symptoms
- Rough idle
- Hesitation
- Poor fuel economy
- Hard starting
Likely causes
- Low or wrong-grade engine oil
- Sticking VVT solenoid
- Faulty cam phaser
- Stretched timing chain
First test to run
Check oil level and grade, then command the VVT solenoid with a scan tool and watch actual vs. desired cam angle.
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