I may be able to help you building that increased idle thing. BTW mine does not really increase idle either when cold or just minimal. I can find out which resistor to play with in the ECU to change that behavior. for increased idle at A/C - I guess you want to have it increased constantly when you turn on A/C ? not going up and down when the compressor clutch is engaged ? good idea to increase idle, you need a small relay and a resistor or potentiometer / trimmer and at least one wire going to the ECU. Let me know when I can help you. Elvis & 6548 I think I have a problem with my idle speed ECU. I works fine for normal operation however, cold idle speed increases during the winter didn't seem happen - at any low temperature - like 20F, etc. So now that things are warmer I wanted to check it - plus - with the right relay set-up I thought I could fabricate an increased idle speed when I turn on the AC. In any event, the wiring diagram indicates a simple trip of the thermistor and there should be an increased idle speed. Problem is, I can't get the ECU to increase the idle speed by simply crossing the two wires from the thermistor - which I believe is all that is required. Thus, why I believe that circuit is defective. Does anyone have a working idle speed ECU laying around that they would be willing to part with - cheap? Contact me directly via email. My address shows in my post. Harold McElraft - 3354 [Non-text portions of this message have been removed] ------------------------------------ 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/dmcnewsYahoo! 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/