ses light po446

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sonomadude4x4
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ses light po446

Post by sonomadude4x4 »

My ses light has been comeing on in the morrnings when I leave for work only comes on when the truck is still warming up after going down the road about a mile the code is po446 something to do with the vent from what I've read but I just clear the code and it goes off for the rest of the day and and olny seems to come on in the morrning any idea what it might be?