alright , so my idles been going up and down when i put my foot on the brake. I hung out with my mechanic for a little while in a effort to figure out what the heck is wrong and got it traced to the cold start air valve (or whatever the heck its called) bolted under the throttle body. (I have a 92 pickup 22re by the way.) Has anyone ever torn that thing apart? it seems as though it should be fairly easy to change/clean but I would be much more confident knowing someone else has dealt with this before.