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2004 Kia Optima OBD2 P0444 Code: Purge Valve Open - Solutions After Replacing Valves

Model: 2004 Kia Optima Fault Code: P0444 Posted: 2016-10-24 19:57

I own a 2004 Kia Optima that is displaying an OBD2 diagnostic code P0444, indicating the purge valve is open. I have already replaced both the purge valve and the vapor canister shut-off valve. Although the fuel fill neck no longer fills up completely (which improved after replacing the shut-off valve), the P0444 code persists. Despite these repairs, the vehicle continues to trigger this error. Any additional troubleshooting steps or potential causes I should consider?

Related fault codes
P0444
Comments (1)
Anonymous 2016-10-25 07:44

Some key points to consider: - Does your OBD2 scanner report all manufacturer-specific P24xx codes? These are often EVAP system-related and may require specific diagnostic procedures. - Check for applicable TSBs, such as KT200502240-06: Enhanced Diagnostics for EVAP Component Troubleshooting. - Potential components to inspect include the fuel tank inlet flapper valve and the CCV (Crankcase Circulation) air filter. These parts can sometimes contribute to incorrect purge valve readings even after replacement.