Does anyone know specifically what the black ground wires the bolt to the intake manifold are for? My car seems to run fine (well maybe I should say, still runs the same) without them grounded. (Except for the intermitant tach / idle flicker which persists despite replacing the ignition pickup coil.) D² & 6530 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/