I beleive my FITV is messed up in some way.

Reason: Car idles jump from 1k - 2k cold or warm weather.
Reason i beleive the IACV is good: Took it off cleaned, didnt work, took it off put a b16a one on there...didnt work, now my main reason why i dont beleive its the IACV and i beleive it is the FITV because it didnt throw a check engine light and w/ the sensor being there, wouldnt you guys think it would throw a check engine light on the IACV?

I have a 95 gsr supercharged, i beleive the FITV is under the throttle body. Anybody know an easy way of getting this bad boy off? How do i know if its bad or what not?

Im tired of my car surging =)

Thanks
-Jason