Having problems with your Honda Accord ?

Obd code p0457 fuel cap replaced mil reset defect not cleared connection checked ok

Posted / edited by AnonymousUser on : 14-01-2019

Answers :

The code is for a large leak in the EVAP system such as a loose or missing gas cap. But it could also mean a loose or missing hose to the canister or other leak in the tank.
The computer vents the tank several times an hour while the engine is running, and it checks the system by pressurizing the gas tank. If the tank will not hold pressure the code is set.
You may have to check the top of the tank where the fuel pump gasket is, as well as the vent lines to the front of the car.
A mechanic would perform a smoke test to look for leaks.
P0457 HONDA - EVAP System Leak Detected/Fuel Fill Cap Loose Or Missingxicon.jpghttp://engine-codes.com/p0457_honda.htmlForum CodePossible causes- Damaged, missing or loosely installed fuel filler cap\011\011\011 Tech notes\011\011\011\011Check for a loose, missing or damage fuel filler the cap.\011\011\011\011
When is the code detected?EVAP control system has a very large leak such as fuel filler cap fell offSymptoms- Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors
- Fuel cap indicator lamp (FCIL) may be illuminated.P0457 HONDA Description\011\011\011This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition.


The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.
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