Yeah, what do you need to know about it? And your idle is ECM controlled, you can't change it. It is governed correctly by all the air/fuel sensors and then controlled by the IAC.
The TV cable should be adjusted so that there is no slack in it, anotherwords, just enough so its right against the plate, but not being pulled. Don't just start adjusting things with the idea that its going to run better or shift differently. Being that these cars are all computer controlled, its not always a good idea to go messing with them to give them false readings, etc. How did you go about "closing the throttle all the way"? Also, is that the correct voltage for the TPS? It sounds right, but i'd have to check. I do believe that it should be right around 0.45v though. Thats a little low. But if you're not getting an SES light from it, you should be fine.