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You probably want to try cleaning the AIC valve on the bottom of the throttle body. unbolt the TB, unplug AIC & remove to clean. It's a small barrel shaped valve with a cutout that turns to adjust airflow at idle. Clean AFM also, be sure to use electric parts cleaner.
If you replace the AIC won't it just gum up again the same as if you clean it? Is there a more perminant fix?
I'm not sure what the price is, I've never had to buy one for myself. I get employee prices anyway....Also, make sure you use a impact screwdriver when to take the 4 screws out that mount it to the throttle body. They are in there really tight and the heads will strip out if you try and unscrew them with a normal amount of force. If you don't have one, clamp the throttle body in a vice and smack the back of the screwdriver with a hammer as you try and loosen it .
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