P050D OBD II Trouble Code Cold Start Rough Idle

How to easily diagnose, repair, and info on causes of a P050D trouble code that indicates a detected rought idle upon vehicle cold start situation.

Symptoms of P050D OBD II Trouble Code

  • Rich/lean exhaust
  • Cold start drivability issues
  • Other drivability related codes
  • Hissing or sucking noise from engine

Common Causes of P050D OBD II Trouble Code

  • Vacuum or air intake leaks
  • Bad spark plugs, plug boots, or ignition coils
  • Insufficient fuel pressure/volume
  • Defective ECT sensor
  • Shorted or open circuits or connectors

Severity of P050D OBD II Trouble Code

A rough idle, or poor idle quality under cold start conditions, could be an indicator of a more serious problem. A code P050D should be addressed at your earliest convenience and considered severe.