Sounds like the idlespeed thermistor has died. Check resistance between pins 9 and 11 on the plug going to the idlespeed computer (it's written on the box which is which), if it's open-circuit, there's your problem. Best Wishes Martin dukeofclassiccars wrote: >Well, I bought my first DMC about 3 months ago and been spending a >lot of time fixing up the mess of the previous owner. Unfortunately >I'm stuck on one last problem. I have a constant high idle speed of >1,900 RPM. Twice what it should be. 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/ <*> 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/