So my disco has been smelling way rich lately, so I got under the hood to see what I could find. What I found was fuse #2(engine management system). I figure that would probably make it run rich out of no where so replaced the fuse. Still smelled rich and would studded ever so often. Check the the fuse blown again. It will blow a fuse shortly after starting to drive. Can crank and idle and won't blow. So is this a kinda common thing specific work through? Is it all electrical? Any help is welcome.