Rob, Thanks for the explanation. D² & 6530 << : Re: Strange acceleration problem --- In dmcnews@xxxxxxxxxxxxxxx, doctorDHD@xxxx wrote Dave, I thuoght I already had explaned it but here goes so read carefully! When a B28 engine is cold is when it's thirstiest for fuel and the Lamda (enrichment) curcuit is in a fixed rich mode. It therefore calls for IMHO more fuel than a partially clogged fuel filter can deliver in this short peak demand period. Does that make any sense? Rob Grady, P.J.Grady Inc. [moderator snip] 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/