I bough a 99 Ranger xlt with a bad 2.5 and i have a 2.5 engine, that having been said I started the truck before the tear down so I know it ran it ran very bad but it ran but after the engine swap the I can't seam to get the 2.5 engine to run.

I checked for fuel witch I have and for spark it had no spark so I checked all the fuses I found the (PCM Diode fuse) was blown I replaced it and the engine would start but it ran very rough and died out, after checking vacuum lines and grounds I tried starting it again to find I was back to square one no start and all the fuses look good so now I'm out of ideas and any suggestions would be helpful.