What does code P0300 mean?
The ECU detects random or multiple cylinder misfires
OBD-II Code
P0300 — Random Multiple Cylinder Misfire Detected
The ECU detects random or multiple cylinder misfires
Common symptoms
- Severe shaking
- power loss
- flashing check engine light
- fuel odor
Possible causes
- Worn spark plugs
- damaged ignition coils
- vacuum leaks
- lean mixture
- faulty injectors
- dirty MAF
- low compression
Initial recommendation
Avoid heavy acceleration and inspect spark plugs, coils, vacuum leaks, fuel pressure and MAF or O2 sensors.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0300 with your vehicle's actual symptoms for more complete diagnostic guidance.
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