P0008 – Engine Position System Performance


The P0008 trouble code indicates a timing issue in the ECM
The P0008 means that the ECM is having timing issues

Bank 1 camshaft and the crankshaft have a variation in mechanical timing. Basically the engine control module (ECM) is experiencing timing issues.

Main Symptoms:

Possible Causes:

  • Timing chain is experiencing tension
  • Timing chain is stretched
  • Crankshaft reluctor wheel is not referenced to TDC (top dead center)
  • Wiring damage
  • Worn out timing components
  • Internal damage to ECM

Diagnostic Steps:

  • Use an advanced diagnostic tool to pull engine codes
  • Visually inspect the VCT/VVT circuit for open/damaged wires

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