So I have everything in and truck runs and drives great (thanks steve!). I have a 96 pcm and wire harness and a 97 truck. I have no guages except oil pressure. I started noticeing that the charging system was not charging then after reasearching i found out that it gets its trigger from the crank pos sensor, then i checked for my 5 volts to the sensor and thats how i got to the problem at hand. I have 12v into the pcm, all grounds connected that I know of and have checked. I have 80mv to 1v comming out of where my 5 volt should be comming out of. its 80mv with key on and when I close the asd relay w/ key on it jumps up to 1v. i have checked everything I can think of and have looked at so many schematics I could puke. I am starting to think the pcm I got is bad. please guide me in the right direction and sorry for teh lengthy post.