Random/Multiple Cylinder Misfire
The engine is misfiring across multiple cylinders randomly.
Have this diagnosed before driving further
Informational only. Consult a qualified mechanic.
- Worn spark plugs
- Faulty ignition coils
- Vacuum leak
- Low fuel pressure
- Head gasket leak
- Low compression
Do not drive. Multiple misfires can damage the catalytic converter. Have diagnosed immediately.
What does P0300 mean?
The P0300 OBD-II diagnostic trouble code (DTC) indicates: random/multiple cylinder misfire. This is a critical-severity powertrain code that your vehicle's onboard diagnostics system triggers when the engine is misfiring across multiple cylinders randomly. If your check engine light is on with this code, you should have the vehicle inspected immediately before driving further.
Use Your Service Book to log this diagnostic trouble code to your vehicle's service history, track repairs, and get maintenance reminders — all for free.
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