engine rpm surge. help needed.

[Rapom]

Man what a crappy last week.. Got the flu. At the same time dropped my cell phone in water! (Do everything from my phone). Got family coming in tonight for 2 weeks for xmas. Haha to me. Good luck getting any diagnostic done.. so I'm with you about the vac leak. I suspect also it's probably the iac (that controls cold idle only) isc controls idle with load while hot. Only. (I know this) I'm going to tape the iac hole (you can eat out of my clean non oily TB) I will close the idle screw (gently like always) tape iac. Fire it up and see what happens.. when? Hahaha.. hopefully in laws will step out at some point.. I might just ass ume the fpr is bad and just replace it.. can't be much $ right? Cheap and easy. I did check the fpr vac hose for fuel. Was dry. So on the isc. I proved my current one was bad and I switched it with a good junkyard unit. I believe the wd I sprayed in there will be a problem for the next poor sap 10 years from now when it collects enough dirt to cause issues (he should clean it as maintenance anyway lol hehehe) also I did not adjust the hex screw on either isc valve. Both look clearly never tampered with. (Melted plastic seal or something in the screw) with yellow paint.. (isc)

If I find out the iac is bad (leaking air when fully warmed up) what is the replacement procedure? Is it part of the tb? If so.. then half that iac hole in the tb is getting jb-welded closed hahahahaha... ehh that wouldn't do anything but lower the cold idle some. Would still leak when hot (I'm just thinking out loud)