I would have your mechanic verify proper operation of the cold start valve and make sure it is not leaking. Other possible causes are dirty injectors, bad warm-up regulator, vacuum leaks and/or misadjusted mixture screw, sticking plunger or air sensor. The Lambda should also be checked for proper operation. There are many other possabilites from a clogged air filter to bad gas. Give your mechanic the Workshop Manual so he can go over all of these systems. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "stefandmc" <stefandmc@xxxx> wrote: > When i start my car, it starts really rough,black smoke comes out of > the exhaust for about 1.5 min then it runs normal. This is bad for the > spark plugs because when i first got the car it wouldnt start, i > cleaned the old spark plugs and it worked for about 2 weeks, then t 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/