[ischmitz]

Cool. Sounds like a fun project.

Have you had a look at Megasquirt? They have tons of good information on various ICV configurations. There is actually a company that makes an aluminum block that can use a Jeep idle control valve and has ports so you can plumb it into your intake. I have used this setup on a Megasquirt controlled engine once.

Unfortunately, Megasqirt-II while using the ICV for cold start doesn't use it for idle stabilization. They felt it too much of a liability issue where the engine could rev uncontrolled if someone programmed Megasquirt wrong.

I believe the microswitch at the throttle body is for the cold-start injector. That injector squirts when the starter cranks and the throttle is closed. But it's been a while since my car had the 2.7.....

Ingo