where is that ICM stud?

The Ign. Control Module bracket/plate mounts to the engine block with 2 studs.
The front stud has the main ground cable from the battery on it.
The one closer to the alternator on non-SC has 3 smaller ground wires on it. There may be a sheet metal plate mounted between the 2 studs, sort of shielding the ICM harness. There are 2 nuts on each before you get to the cable. Found a drawing. see G100

And on that EGR location

Thanks for the pics. The mechanic that I brought it to found the problem, the break booster was bad, it was letting outside air in. I get it fixed on Monday and will let you know if it fixs the idle problem or not.

Brake Booster deal is good to know. Motivates me to dig further into mine. Was ready to replace the booster months/weeks ago because it was leaking, when I got sidetracked with all my other drive train management problems. Was trying to disconnect the hose and temporarily plug for troubleshooting the other day. But it was stuck on so well that I was afraid of breaking the plastic pipes... so let it slide for a while. But now I better get after it. Thanks

This is a bit off topic but I want to change the pcv cause I'm sure it hasn't been changed but don't know exactly where it is. I looked at your pics but it doesn't have it shown. What will changing the pcv do for my car....better gas mileage?

The PCV is in sort of a weird place.
Easiest way to explain is; the decorative "3800" shield that clips onto the fuel rails, also locks onto a little tab at the passenger side.
That tab is part of an upright, plastic cylinder that contains the PCV.
Turn the lid CCW, about 1/8 turn to release it. It has an 0-ring seal on the lid and a coil spring that needs to be pulled out.
I used needle nose pliers to grab the PCV and pull it out.
There is an o-ring on the bottom section of the PCV. Don't loose the o-ring because replacement PCVs don't include one.

If one was to stick shut, your crankcase will pressurize and cause oil consumption issues.
I read someplace if one sticks open that it can effect idle.

I think I only paid $2 for one; so it is a cheap maintenance item.
Found a picture:

Thanks, the picture was really helpful. Where are you getting these pictures at, from the bonne service manual, I hear they are about $100 for the 2 books from the dealer?

Yes, they are $105 for the pair on-line at either http://www.helminc.com or http://www.goodwrench.com/Tips/OwnerManuals.jsp. helminc.com is the official publisher. But believe it or don't, I fell into it and only paid $30 for the set. I swear they were on sale or something!
If you are going to hang onto your wheels for a while, it'* MORE than worth the full price. Had it for years and still finding stuff I didn't know was in there.
I also have an online subscription to alldatadiy.com too. But it is not as complete and can be hard to navigate.