EVAP System on 2003 Honda Civic

Engine Light on constantly;
OBD2 Code "P1457" EVAP Emission Control System Leak Detected (Canister Area)

1 answer
Check for any obvious disconnected hoses in the evaporative emissions system, by the fuel tank. Other than that, you really need to have a good diagnosis performed to test the individual components to find out what is leaking. Good luck.