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What to Do When Your Hyundai Grandeur Azera Shows Error P0455

Model: Hyundai Grandeur Azera MK 5, HG - Years 2011-2016
Part: Warning light – error code

When your Hyundai displays error P0455, it indicates a serious issue with fuel evaporation emissions (EVAP). There are two practical solutions to address this situation: The first is to check the gas cap. Inspect the condition of the gas cap and clean it thoroughly with a good spray of WD-40, both the cap and the cavity where it sits. Reinstall it. The second method involves the purge valve, which is usually located next to the throttle valve. Remove it and clean it thoroughly, then reinstall it in the correct orientation.

Updated on 8 July 2026 by ScegliAuto

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