You need a new o2 sensor (your wire has been ripped out)

In the fourth picture, you need to get a new sensor. I might have an s4 one, if I do it's yours

That big hole from your ACV emissions crap, I beleive there is suppose to be a tube going from that to the back of your airpump (I haven't messed with emissions in a while so I might be wrong). You have no 6port actuators, do you still have a cat? If you don't have a cat just rip off all the emissions and make block off plates, Rotaryresurrection.com has a write-up.

That bottom picture, that one single wire plug. That should go to a sensor on the top of your fillter neck, right above your thermostat.

All those hard lines went to emissions stuff, you don't need them (except one, which is for your master cylinder which is pretty obvious)

I might have that sensor, I'll go through my tubs of useless n/a parts.

Hope that helped some, I'm pretty tired or I might have been more help. Rx7club.com has thousands of useful threads, hardest part is finding them :/

Also about your idle, fixed all your vaccum leaks. Then close your butterflys all the way and open them back up to stock specs. Then adjust your tps. I have that stripped metal adjuster you can get aswell, so you wont' have to have a rigged one.