P0286 OBD II Trouble Code Cylinder 9 Injector Circuit High

Symptoms of P0286 OBD II Trouble Code

  • The malfunction indicator light will illuminate and code P0286 will set
  • The engine will run rough at idle
  • The fuel economy will suffer
  • There will be a lack of power indicated by poor acceleration

Common Causes of P0286 OBD II Trouble Code

  • Faulty electrical harness from the PCM to the injector
  • Faulty electrical connector on the fuel injector
  • Internally shorted fuel injector causing a high-voltage draw
  • Plugged or dirty fuel injector