Problem overview
The 1993-2005 Honda Civic commonly has problems with the EVAP canister vent solenoid. It stops responding to commands to open and close, and the following occurs:
- Illumination of the check engine light
- OBD trouble code P1457 is stored
- Engine takes longer than usual to start
- Fuel mileage decreases noticeably
The valve is located on the charcoal canister, and is meant to open and close upon command. It fails due to corrosion breaking one of two internal seals, which allows air to escape the system, signaling the OBD trouble code P1457.
Correcting the problem can be done by replacing the vent valve, or, in some cases, cleaning and resealing the vent valve has been successful. You can get an estimate for this repair here.
A worn, missing, or loose gas cap can cause the same issues.
Honda Civic vehicles with this problem
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