what is the sensor for the 7.3 that I hear I am supposed to "keep an extra one in the glove box" and what does it do
somehting about a rough idle? maybe I saw a post awhile ago but I can not find it anymore

 

The sensor is a CPS (Cam Position Sensor).. If you are having rough idle, this could be caused by a loose 9 pin connector just under your valve cover for your wire harness.. Just fixed mine. Here is a good link for more info on your engine, etc..
http://www.7point3.com/mods.aspx

Welcome to the Forum !

 

thank I'll check it out