EVAP system codes (P044x/P045x)
Every CheckLight guide in this code family.
- P0440 Evaporative Emission (EVAP) Control System Malfunction
- P0441 Evaporative Emission (EVAP) System Incorrect Purge Flow
- P0442 Evaporative Emission (EVAP) System Leak Detected (small leak)
- P0446 Evaporative Emission (EVAP) System Vent Control Circuit Malfunction
- P0455 Evaporative Emission (EVAP) System Leak Detected (large leak / no purge flow)
- P0456 Evaporative Emission (EVAP) System Leak Detected (very small leak)
- P0457 Evaporative Emission (EVAP) System Leak Detected (fuel cap loose/off)