Unresolved

Asked by Jan 14, 2017 at 10:41 PM about the 2009 Hyundai Accent

Question type: Maintenance & Repair

I changed the purge valve on 2009
Hyundai Accent and it still has trouble
starting after fueling up! Now what?

2 Answers

76,365

Are there any codes yet and what is it? HYUNDAI - EVAP Emission System Leak Detected Large Leak.... Possible causes Missing or loose fuel cap Incorrect fuel filler cap used Fuel filler cap remains open or fails to close Foreign matter caught in fuel filler cap EVAP canister or fuel tank leaks EVAP system hose leaking Fuel tank leaking.... The P0455 it’s a very common code, because the code is set if the gas cap is loose or missing. Start by tighten the gas cap and clearing the code. In most cases the code can be clear by disconnecting the car battery for about 30 minutes....This 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. OBDII Code P0455 Hyundai - Just guessing on what the code would be.....

76,365

Diagram of EVAP System....

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