Ive been tinkering again and the last stop on my prom burning trip seems to be the idle and initial startup. So far ive only found the basic stuff in my ecm for the IAC routines. Does anyone have any detailed info for the ecm constants concerned with the IAC operation for the 8746? Ive looked at the 7747 but thats diffent then the 8063. In the constants portion of my source code there seems to be only about half of what the 7747 has and im kinda lost.