-Kyle-

I have a Jeep with a TPI unit on it. It was out of a 90' camaro with the MAP. If runs fine, throttle response is good and is at .55v but I keep having a problem when i let off the throttle it revs higher but i can tap the throttle real quick and it will idle down kinda like a carb. I checked all my vacum lines and everything is blocked off except the brake boost, map vac. line, and the vac line for the fuel thing on the back of the fuel rails. I don't know whats up with it. I have looked stuff up on it and people say replace the IAC but i don't know if that's it or not.