I don't know. I started it up 4 times today. I started it and warmed the engine up to 190 *. The IAC was at 60. I shut it off and restarted right away and the temperature was at 156* and the IAC was at 40. I shut it off again and restarted it immediately and the engine temperature was at 162* and the IAC was at 20. I shut it off again and restarted it immediately the engine temperature was at 190* and the Top IAC was at 8. I need to figure out how to get the computer check out the numbers it's showing to make sure they are correct. I appreciate your help.