P0300-Multiple Cylinder Misfire: Notes
- When Monitored : Any time the engine is running, and the Target Learning Coefficient has been successfully updated.
- Set Condition : When more than a 1.0% misfire rate is measured during two trips.
| Possible Causes |
|---|
| ENGINE CONTROL RELAY OUTPUT CIRCUIT |
| FUEL INJECTOR CONTROL CIRCUIT |
| FUSED IGNITION OUTPUT CIRCUIT |
| ENGINE MECHANICAL PROBLEM |
| COIL ON PLUG |
| COIL ON PLUG DRIVER CIRCUIT |
| SPARK PLUG |
| FUEL STRAINER PLUGGED |
| RESTRICTED FUEL SUPPLY LINE |
| FUEL PUMP |
| FUEL INJECTOR |
| POWERTRAIN CONTROL MODULE |
For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .