My cars idle was a little too bumpy, and hard to start after it was warmed up sometimes. I searched the threads, and found some entries about guys taking there IAC sensor on the side of the throttle body, and flipping it upside down. I decided to give that a try, and my idle went up about 200 rpm, and didn't feel like it was going to die went slowing down and shifting to neutral. I went ahead and adjusted the idle down a few hundred, and inturn reset the TPS to about 1.0 volts. It seems to start better when warm, and the idle a little better. Just throwing this out there, maybe someone else will find it helpful.