P0446 HYUNDAI - how to fix the problem

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anonymous · Answer 1 · 2018-01-04T05:34:05+0000

Check the gas cap first. It may be loose or it needs to be replaced if its crack or cracking or it maybe a bad vent control valve

Possible causes

- Missing Fuel cap

- Incorrect fuel filler cap used

- Fuel filler cap remains open or fails to close

- Foreign matter caught in fuel filler cap

- Vent control valve harness is open or shorted

- Vent control valve circuit poor electrical connection

- Faulty vent control valve