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Code P0449 indicates a problem with the evaporative emission control system, specifically related to the vent control circuit. To repair this issue, you should first inspect the wiring and connectors for damage or corrosion. If the wiring is intact, test the vent control valve for proper operation and replace it if necessary. Additionally, check for any leaks in the EVAP system and ensure that the gas cap is secure and in good condition.

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2w ago

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