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Diagnose/P0011
P0011Medium SeverityEngine

Intake Camshaft Position Timing Over-Advanced (Bank 1)

What This Means

The intake camshaft on bank 1 is more advanced than the computer has commanded. The VVT system is not holding the camshaft at the requested position, which can affect engine performance across the RPM range.

Common Symptoms

  • Rough idle
  • Stalling at low RPM
  • Poor fuel economy
  • Engine rattle on startup

Common Causes

  • Old or dirty engine oil
  • Faulty VVT control solenoid
  • Clogged oil passages
  • Worn timing chain or tensioner
  • Failed camshaft phaser

Estimated Repair Cost

$150 – $1000
Parts and labor (varies by vehicle and location)
Difficulty:Advanced

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For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.