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Discussion Starter · #1 ·
My 97 thru a EVAP PO 0446 today.

What the heck is a Evaporative Emission Control System Vent Control Circuit and where is it located. I guess the valve is bad or a short in the elec. or blockage of the valve ooooooooorrrrr a bad PCM.
I've got no idea of where or how to trouble shoot or fix this one.
 

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Don't panic, bro.... check your gas cap first...if it's not tight, or leaking, it'll throw that code! ( I'm pretty sure it's the one I get when I don't get my cap tight)
 

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Discussion Starter · #3 ·
THE GAS CAP!!!!! where is that and how do I trouble shoot it :eek:

It couldn't be something that simple, could it. It did pass the emission test a couple months ago, maybe I didn't get it on tight last fill up.
 

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I may have the code messed up... I do know a bad gas cap will throw an evap em. code... but try this thread,it might be your fix
viewtopic.php?f=43&t=3072
 

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Discussion Starter · #5 ·
That's got me pointed in the right direction. I'll check the gas cap first though.

Thanx Rev :)
 

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glad to help, i remembered a couple of threads dealing with the evap a while back.
 
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