I had the same problems. Try John's idea from a previous reply. What sounds like to me is that it runs rough until your O2 sensor kicks in. Adjusting your mixter screw would solve this problem. And once your O2 sensor does kick in, your idle speed motor will adjust to allow the proper air flow for 900rpm. ~Dan 3817 - Born Again. --- In dmcnews@xxxxxxxxxxxxxxx, "delorean6584" <carburateur100gaz@xxxx> wrote: > hi, my engine runs strong but the idle conditions arent, when the > engine is COLD i starts fine, rev up at 1500rpm for 10secs then drop > to 750rpm (but really rough) but doesnt stall, when the engine is > semi hot-cold (about 1km later) the idle sit about 1200 rpm and when > the engine is hot the idle sit a 950-1000rpm....it is always the > same what bothers me the most is when the engine is cold(rough idle) > maybe the rpm isnt enough precise but one thing is sure : the engine > cold runs too slow > > any advice ? 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/