Originally Posted by cwood1388
mine is doing the same thing. it fluctuates between 100 and 1000 rpm
well that sounds like a dif problem
100-1000 sounds more serious than 1000-2000
why dont you try changing the IAC valve totally instead of modding it i think the mod is intended to cool off the TB, which adds an alarming .5 HP.
see if u can get a used IAC valve off ebay or locally at a junkyard.
as far as cwood, are u getting mils? check your vacuum lines.
~kris