P0012 OBD II Trouble Code "A" Camshaft Position - Timing Over-Retarded (Bank 1)

Detailed information on troubleshooting and repairing a p0012 dtc diagnostic trouble code which refers to a camshaft timing over-retarded.

Symptoms of P0012 OBD II Trouble Code

  • hard starting
  • poor idle and/or
  • stalling

Common Causes of P0012 OBD II Trouble Code

  • Incorrect camshaft timing
  • Wiring problems (harness/wiring) in intake timing control valve control solenoid system
  • Continuous oil flow to VCT piston chamber
  • Failed timing valve control solenoid (stuck open)