Finally got my GSR Swapped EG to fire up, fires up perfectly, but here's my problem. Immediately after the car turns over, engine revs it self.... all the way up to 5-8k rpm (Sometimes even 9) and fluctuates in between there. I did my vacuum lines accordingly, but i am missing the IAB check valve and I also still need to wire up my EVAP Purge Solenoid plug because I'm using a z6 harness, but still the idle shouldn't be this crazy with out those things right? Tips, suggestions , tech help greatly appreciated.

 

You must have a MAJOR vac leak some where the iab not wired up doesn't matter neither does the evap(as long as the line are capped) put you'r hand over the throttle body i most likly won't die listin for leaks when you do that. but first vissualy inspect that all lines are plugged in/snug

 

It's kind of hard to listen for the leak , remember the engine is revving in my face the whole time, could a FITV adjustment be the case, you know how you turn the flatheaded piece inside of it to adjust the idle?

 

that's not the fitv give the iacv a clean just for the heck of it. is there enough slack on you'r throttle cable ?
what happens when you put you'r hand over the trottle body does it die

 

Fit could be it. It's on n the bottom of the tb. I had an issue just like yours, removed the fit valve, and viola! Gone. It's super easy, and worth a shot. Free as well.

 

Wait, you removed your Fitv completely?what did you do with the lines/hoses?

Car doesn't die when I put my hand over the TB and cable is fine.

 

then you have a vac leak somewhere and a big one at that !. the fitv would NOT make the car idle at 5K+ rpm's are all the hoses leading to the intake manifold connected properly double check that then this:

 

Just watched an eric the car guy vid on unstable idles in hondas. got the problem fixed. Many thanks to that guy.