well, after reading all the great posts on this site and figuring it had to be electrical instead of heat related, i think i found my high idle problem. I read about all the trouble with the OVP relay, and started noticing that my antilock light never came on. i decided to replace the OPV, and the car runs great.
i saw in the wiring diagrams that the relay power the ICU and the ABS and check engine light, etc. and the problem was extremely intermittent so i thought i might as well start there, since i was convinced my idle control valve and throttle position switch were ok, after some testing. hope this does the trick, and everything is running great, but my ABS light still will not come on. it may be the bulb, but i have to run that down now. thanks for the help and suggestions. it can get aggravating sometimes, but i love this car, and will probably be glad i have it 20 years from now.