Skip to main content
Diagnose/P0012
P0012Medium SeverityEngine

Intake Camshaft Position Timing Over-Retarded (Bank 1)

What This Means

The intake camshaft on bank 1 is more retarded than commanded. This means the intake valves are opening and closing later than optimal, reducing engine performance especially at higher RPMs.

Common Symptoms

  • Loss of power at higher RPMs
  • Rough idle
  • Decreased fuel economy
  • Possible engine noise

Common Causes

  • Low oil pressure
  • Dirty or incorrect oil viscosity
  • Faulty VVT solenoid
  • Worn timing chain
  • Clogged oil screen

Estimated Repair Cost

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

Need This Fixed?

Find certified mechanics near you who can diagnose and repair P0012.

Find a Shop Near You
Search Another Code

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.