P0300
Random/Multiple Cylinder Misfire Detected
System: Ignition
Severity: medium
What does P0300 mean?
The DTC P0300 (Random/Multiple Cylinder Misfire Detected) is a fault code stored by the ECU when it detects a random misfire condition in the ignition subsystem. It is commonly seen on European and Asian vehicles using Bosch, Continental, Siemens or Denso ECUs.
Common causes of P0300
- Vacuum leak
- Bad fuel quality
- Multiple weak coils
- Lean condition
How to fix P0300
Comprehensive diagnostic. After repair, DaVinci can refine fuel/spark maps.
Tuning approach with DaVinci Deluxe
For P0300, DaVinci Deluxe offers the following ECU map adjustments and software solutions:
- Knock sensitivity adjust
- Fuel trim recalibrate
Need to fix P0300 on your ECU?
DaVinci Deluxe is professional ECU tuning software trusted by 800+ workshops. Lifetime license €299, 10 minutes free trial.
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