I checked as good as I could. Especially the vaccum delay connections around the warm up reg. area. I have just replaced my waterpump and this problem came after that operation. I installed the water pump kit from huston with all gaskets etc så i dont suspect a leak in the intake. One mystery is the air aux pipe from the idle speed motor, what is the effects of air leaks there ? Is it possible that a ign cable has been damaged ? The car runs great on every rpm above 1200. Regards Johan --- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@xxxx> wrote: > > > How did you check vacuum, ignition cables, etc? It could still be that > and/or other things like a dirty fuel injector, worn spark plugs, one > of the timing advance systems not working correctly etc. There a just > a lot of things that can cause or contribute to these symptoms. > David Teitelbaum > vin 10757 > > --- In dmcnews@xxxxxxxxxxxxxxx, "Johan" <dmc@xxxx> wrote: > > > > I have a strange problem. > > > > 700-1500 RPM engine runs bad, no power shakes alot. > > > > 1500 and above engine runs normal. > > > > I have checked vaccum, ignition cables etc. > > What causes this ? > > > > Regards > > Johan > > 5425 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/