2002 Sedona P0446 fault code - Kia Forum
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#1 (permalink) Old 07-23-2008, 03:48 PM
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Default 2002 Sedona P0446 fault code

I am a new to Kia Sedona owner. Just bought van and it failed emissions test with the check engine light on. Kicked out a P0446 Evaporative Emission System Vent Control Circuit error. Can anyone tell me what this means, and better yet, how to remedy the problem. Thanks in advance!!
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#2 (permalink) Old 07-23-2008, 04:19 PM
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Welcome to the forum.

The fuel tank evap error code is very often caused by a gas cap that was not properly secured or its seal is bad.

Check the gas cap and replace it if the seal looks bad, then disconnect the battery for a few minutes (switch on the lights or some other load at this time to ensure all residual charge is depleted) to reset the error codes stored in the ECU.

For service info register (free) with KiaTechInfo and click on 'Shop' on the left, and for elect schematics click on 'ETM'.

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#3 (permalink) Old 07-23-2008, 08:53 PM
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Originally Posted by ron1004 View Post
Welcome to the forum.

The fuel tank evap error code is very often caused by a gas cap that was not properly secured or its seal is bad.

Check the gas cap and replace it if the seal looks bad, then disconnect the battery for a few minutes (switch on the lights or some other load at this time to ensure all residual charge is depleted) to reset the error codes stored in the ECU.
Thanks for the reply. You're right on the money. My wife went to get the emissions test done today and they tested (and passed) the gas cap. They didn't even test emissions for her, but pulled the error code and gave that to her with a failed test paper. I disconnected the battery and CEL gone. I'll have her go back tomorrow for the real test. Thanks again. Hopefully, this will be a pretty dependable vehicle and I won't have to use the forum often, but for a first time use, same day service, problem solved, not a bad place to be!!!!

Thanks again.
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#4 (permalink) Old 10-14-2008, 06:46 AM
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#5 (permalink) Old 11-29-2013, 01:01 PM
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Default po 446

i have a 2002 kia sedona ex... my check engine light came on about a month ago... since then my vehicle has been stalling .. usually after it runs for a while.... it always starts back up if i wait 20-30 minutes... but then i drive for another mile or two and it stalls again... when filling up at the pump, the pump handle keeps clicking off... i had it scanned and the code comes up po 446 .. evap emissions circuit... i heard a gurgling sound when i took off the gas cap... when i leave the gas cap loose, the engine doesn't stall... it seems to be creating a vacuum in my gas tank for some reason .. i guessing it's not the cap since i hear the gurgling sound coming from the tank when the cap is removed ... has anyone had this experience before ? .. and know why this might be happening ? thanks, Rob
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