the thing you have to do is unplug the tps, and measure the ohms across two pins. i forget which ones, but you only have three, so not many combinations. anyways, when you do get an home reading, press the tps in and see if there is a SWEEP of any sort that is somewhat solid. there are plenty of write ups on it, just pm me on rx7 club. im "sircygnus" on there. or on aim. im on all teh time.