The plug with the pig tail is the correct one to hook up for tps function, The plug on the throttle body is more or less a switch to tell an automatic trans that the throttle is closed it is not needed for what you are doing. If you plug the feed to the IACV and the engine dies that it is most likely not a vaccum leak, it is probably your IACV.

 

sweet. now comes the headache of trying to find a new iacv locally. or just rig up some sort of vaccum restricting device to use in place of the iacv lol

 

I'm not sure if this is correct, but the 91-94 Nissan Sentra IACV looks exactly like the rb25 one. It has the same 3 bolt pattern, same 2 looking things, and same 2 colored plugs. Never tried this myself, just something I've noticed.

 

Adrreil is correct, you can use the 91-94 Sentra IACV, the ACDelco part# is AC85 i believe they are like $80 dollars new. Hope that helps!

 

Yes, if not check out rawbrokerage.com I just sold him my tb with all the wiring. Also, my rb acted like a WHORE when the ground wire to the fire wall wasn't big enough. I know it sounds completely unrelated but mine affected idle. And if you have a series two motor it has a garbage turbo with plastic fins. So I wouldn't step it up to high on boost.

 

Thanks for taking the time to discuss this, I feel strongly about it and love learning more on this topic. If possible, as you gain expertise, would you mind updating your blog with more information? It is extremely helpful for me.