98 obdII swap harness build

Hey everyone I'm in a rut I need your guys help I'm attempting what's being discussed in this forum I have a 1994 ram 1500 and I did the Magnum V10 swap using the 98 engine computer and harness as well as the transmission 47re I've been studying every diagram possible for about a month now trying as many combinations as I can to get this thing running it starts runs for 3 seconds then shuts off immediately I had the j-tech module programmed and the skim removed security from the module what am I doing wrong