Code PO446 EVAP control circuit

KENNYB

MEMBER
2009 HYUNDAI ACCENT
1.6L
4 CYL
2WD
AUTOMATIC
170,000 MILES

Had to replace purge valve because it didn't want to start when you filled it up. Now it is showing PO446 the evap control circuit. Any help would be appreciated. Ken Black

Sunday, December 26th, 2021 AT 4:31 AM

1 Reply

SQM

MECHANIC
6,383 POSTS

Hello,

The code - P0446: EVAP Emission System vent control circuit

This can get triggered due to a bad connection, faulty canister close valve, this can also be triggered due to an issue with the ECM.

https://www.2carpros.com/articles/evap-system-code-repair

First make sure the connector for the valve is secure. If it has dirt or debris, it will be unable to send a proper signal and will trigger the light.

I have attached the trouble shooting steps for the code P0446 below.

Follow those steps and that can help you determine the issue.

Let me know if you have any questions.
Thank you.

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