Elvis, I just read your post and I agree... I cannot figure out why a vacuum leak or bad O2 sensor would cause the idle to hunt, (as mine does 900 - 1200) The only way I can see this happening is if the vacuum leak is somehow not constant and keeps changing then the ECU might have a hard time compensating for it. Please let me know what you find out. Thanks D² & 6530 [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/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/