EVAP system malfunction judgment
WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
- The PCM calculates the stored air pump load current value and send the results to the WDS as DTCs:
| PID | Condition |
|---|---|
| P0442 | Evaporative emission control system leak detected (small leak) |
| P0446 | EVAP system vent control circuit problem |
| P0455 | EVAP system leak detected (large leak) |
| P0456 | EVAP system leak detected (very small leak) |
| P2401 | EVAP system leak detection pump control circuit low |
| P2402 | EVAP system leak detection pump control circuit high |
| P2404 | EVAP system leak detection pump sense circuit range/performance problem |
| P2405 | EVAP system leak detection pump sense circuit low |
| P2407 | EVAP system leak detection pump sense circuit intermittent/erratic problem |