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The P1457 is pointing to a "leak" in the EVAP (emissions control) System. This is actually a very common problem. Honda has issued a Technical Service Bulletin that states the most common problem associated with this code is the EVAP solenoid valve (fuel vent module) is blocked or restricted, and they have issued a "kit" that contains a new solenoid, that should solve the problem. It located under the vehicle, mounted to the side of the EVAP Canister.