AutoCodes

OBD-II / P0300

Random or multiple-cylinder misfire detected

The engine has detected irregular combustion in more than one cylinder. Continuing to drive can damage the catalyst.

Possible causes

  1. 01Spark plugs or coils
  2. 02Unmetered intake air
  3. 03Irregular fuel delivery
  4. 04Compression or timing

Safe checks

  • Note whether it happens cold, at idle or under load.
  • Look for P0301–P0308 codes.
  • Inspect connectors and hoses without touching hot components.

لا يغني عن تشخيص الورشة. يساعدك أولاً على الفهم واتخاذ القرار. Original editorial content; always confirm manufacturer procedures and specifications.