you have to load GM pid's. then KR will show up with all the other live data. once set up when you "add" a gauge, do it in the car, this way anything that green is active and you know will work.

this guys got simple directions http://www.grandprixforums.net/threa...ive-KR-monitor

you dont need the t scan iirc but its got more stuff too and its free.