I have a '90 Honda Civic Si 1.6L 5-Spd, well over 300k (speedometer broke). Long story..

[Marcus]

...short my car was drivin? g fine as usual and one day it wouldnt crank, itd turn over fine but just wouldnt start so I did some checking and it turned out to be the fuel relay (the $70 relay way up under the dash)... 3 days later I drove my car about 40 miles on the interstate one distance and as soon as I got off the exit , on the main road it jus quit on me, and now is doing the same exact thing it was doin before...just turning over no sputter or anything, I think I might have a short?? PLEASE HELP