Fault codes › P0012

P0012

Camshaft Position A Timing Over-Retarded Bank 1

Generic code Ignition System High severity Hard repair
Free on OBD DashX

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iWhat P0012 means

  • The fault code P0012 indicates that there is an issue with the timing of the camshaft position sensor for bank 1, specifically that it is over-retarded. This can negatively affect the engine's performance, including poor acceleration and a reduction in power.

!Possible symptoms

  • Check Engine Light illuminated
  • Rough idling or stalling
  • Decreased engine performance or power
  • Engine misfires
  • Poor fuel efficiency

?Possible causes

  • Faulty camshaft position sensor
  • Engine oil contamination (Thick oil)
  • low oil level
  • Oil control solenoid to the bank1 camshaft is clogged
  • Faulty camshaft timing actuator (Phaser) solenoid
  • Incorrect camshaft timing due to timing chain or belt issues
  • Faulty engine control module (ECM)

⚙Related parts

  • Camshaft Position Sensor: The camshaft position sensor monitors the position of the camshaft to regulate fuel injection. Problems lead to stalling or car failing to start.

✓Possible solutions

  • Test and replace the faulty camshaft position sensor, if necessary
  • Ensure the engine oil is at the correct level and free from contamination
  • Test and replace the faulty camshaft timing actuator solenoid (Phaser), if necessary
  • Inspect and repair any timing chain or belt issues that may be causing incorrect camshaft timing
  • Test and replace the engine control module (ECM) if it is determined to be faulty
Free on OBD DashX

P0012 on OBD DashX

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