Thanks for all of the responses! I will take all of these suggestions and do a little more troubleshooting. To answer a few questions: Yes, it was idling fine consistently prior to the tune-up I did back in February of last year. I cleaned up the valley, POR-15'ed it, and replaced rotor, dist cap, plugs, plug wires, coil, belts, cleaned injectors, fuel filter, main fuel line, and maybe some other things I forgot about since that time. Since then, it started idling very high after it warmed up, but not always. Sometimes when I come to a stoplight after driving its around 800rpm, but most of the time its 1500+. It seems like its gradually getting worse. My brass idle mixture screws have their heads snapped off. I have new ones but since I don't think they are leaking, I wasn't going to replace them yet. I have taken the throttle linkage apart and put it back together at least three times. I had Dave Swingle take a look at the throttle micro switch during the Pittsburgh Tech Session, it seemed to be a little sketchy then - like sometimes after revving the engine it would return to 800rpm, other times it would not. I will look at that a little more closely also, and also the idle speed motor. Thanks again for all of the suggestions! To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/