Hi David, thanks for your oppinion. I went and popped the hood on my SC and was trying to pull the crank pulley in every direction to see if there is any play on it and was actually dissapointed because it was solid. I felt the large bolt in the center of the balancer and also the 4 bolts going from the pulley to the balancer. I am a strong guy and know if it was loose i would of been able to shake it back and forth. I started the SC and was eye balling the pulley and crank and noticed that it seems that only the pulley was wobbling a bit. The balancer didnt seem to be wobbling at all. I dont know if maybe the pulley is bent or what.
Anyways as the SC was running i disconnected the iac harness and the car started missing just like it does when i have those problems. It also seemed to be knocking while the iac harness was disconnected but i didnt pay to much attention to that because i can redline this motor and it never knocks at all. So as it is disconnected i rev the rpms to about 2500-3000 and when i let go of the throttle the rpms drop fast just like it shoul. I did this a few times and again revved up and revved down nice and smooth. When i plugged the iac harness back in the rpms when up to probably 1200 or so and took a long time to go down to about 1000 which is were it idles every since i started with these problems. I was at a wrecking yard a couple weeks ago and took the iac valve off of another SC and swapped it with mine hoping this would take care of my problem but it didnt change. I should of waited for a SC with less then 185,000 for the iac valve. But i figured it was good now im thinking it isnt good and it might be my iac valve. What do you think?
Thanks again