P0300 OBD II Trouble Code Random/Multiple Cylinder Misfire Detected

Symptoms of P0300 OBD II Trouble Code

  • the engine may be harder to start
  • the engine may stumble / stumble, and/or hesitate
  • other symptoms may also be present

Common Causes of P0300 OBD II Trouble Code

  • Faulty spark plugs or wires
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector(s)
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Stuck/blocked/leaking EGR valve / passages
  • Faulty camshaft position sensor
  • Defective computer