Ok so ive been having problems with idle speed going down when i turn on the ac or the
radiator fan comes on so i read that its the fitv, will i go to adjust it and the guy before me plug the hole with a bolt and removed the fitv. So i have to get this fixed, i obtained
another manifold with a fitv and a better iacv on it and im gonna swap them out only problem is , the fitv on the new manifold has a wire harness on it and i cant find on my car where it would plug up to .
What should i do

its a 88 mutlipoint fuel injection but originally i think it was dual point. And now its using a mp6 ecu .Hope that helps

Ur help is greatly appreciated

 

anybody?

 

Idle is supposed to go down a little when you turn on ac. The ac is driven by the motor.

 

it does , but the fit pushes it back up

 

No not really. Fast idle is for cold starts. The IACV is what controls the idle. If you turn on the ac or the radiator fan comes on and the idle drops like 100rpms then it's normal don't worry about it.