yes, im sorry, i forget the vacuum is measured in 18" of mercury. that is my vacuum pressure, but i have done almost all other things to fix the idle problem. i have switched out the MAF sensor, replaced half of the vacuum hoses, and checked them all, i have sprayed the gaskets with carb cleaner looking for a leak. i have bypassed the charcoal black box to test for a leak there. with no success. i have cleaned and checked the IAC by removing the IAC and pluging the holes of the IAC, and the car idled normally @ 700rpm, i was told the car should die or be near to dying, but it never got close to that. so i conclusively figured it must be a vacuum leak problem. the idle set screw is set where the blade in the throttle body is just out of the range to stick on the aluminum. the idle problem persist and i am being driven more made every day. could it be a problem with the thick film integrated ignition, i woudnt think so though. if anyone has anyother suggestion on how tho fix the problem, please tell me, i have done all i know to fix the problem. when i run koeo, i recieve no codes, but with koer i recieve a code that states the idle is too high and nothing else.