P0300 – Random/Multiple Cylinder Misfire Detected
Description
Engine is misfiring in multiple cylinders without a consistent pattern.
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View Recommended ScannersSymptoms
- Rough idle
- Hesitation
- Poor acceleration
- Engine shaking
- Check engine light
Causes
- Worn spark plugs
- Faulty ignition coils
- Vacuum leaks
- Fuel injector issues
- Low fuel pressure
Diagnosis
- Check misfire counters
- Inspect spark plugs
- Test ignition coils
- Check fuel trims
- Perform smoke test
Repair
- Replace spark plugs
- Replace faulty coils
- Fix vacuum leaks
- Clean or replace injectors
- Check fuel pressure
Related Problems
- Car Misfires
- Car Runs Lean
- Check Engine Light On
- Rough Idle
- Car Loses Power While Driving
- Car Loses Power When Accelerating
- Car Jerks When Accelerating
- Car Shakes When Idling
- Car Shakes When Accelerating
- Car Stalls While Driving
- High Fuel Consumption
- Car Hesitates When Accelerating
- Car Makes Clicking Noise
- Car Vibrates At High Speed
