Most likely it means your gas cap is loose... or whats called an evap system leak.
Trouble code P0457 means:Evaporative emission control system leak detected ( Fuel cap loose/off)
P0457 Evaporative Emission Control System Leak DetectedIt means there is a vapor leak between the gas cap, tank, and engine.P0457 Evaporative Emission Control System Leak DetectedIt means there is a vapor leak between the gas cap, tank, and engine.
Code P0455 means EVAP control system,big leak detected
Trouble code P1456 means: EVAP Emission Control System Leak Detected (Fuel Tank System)
EVAP Emission Control System Leak Detected (Control Canister System)
Honda code P1457 means EVAP Emission control system leak detected (control canister system)
evaporative emission control system leak detected
Trouble code P1457 means: EVAP Emission Control System Leak Detected (Control Canister System)
Trouble code P1456 means: EVAP Emission Control System Leak Detected (Fuel Tank System)
Trouble code P0442 means:Evaporative emission control system leak detected (Small leak)
Trouble code P0442 means:Evaporative emission control system leak detected (Small leak)
Trouble code P0442 means:Evaporative emission control system leak detected (Small leak)