P0455 indicates a large leak has been detected in the evaporative emission control system. It can be caused by a loose gas cap, an overfilled fuel tank, or a bad canister vent solenoid or broken wiring to the solenoid.
means EVAP control system big leak detected.The fuel filler tube is exposed to your wheel well. If it gets rusted it can cause this. It is possible that as the vacuum builds in the gas tank as the fuel diminishes .
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