Maxamus

I looked and only found one thread and it did not answer any of my questions and hasn't been posted in since 2012. My son has a 98 Mustang V6 we pulled the motor and set in a 5.0. We got a Harness and computer from a 95 GT becuase I figured it would be a cleaner install over a 87-93 harness. OK a couple of issues 1st after I installed the harness and Computer from the 95 I had 1 4 wire plug left over. Nothing for it to connect to a white 4 wire connector, Brown/white tracer, Red, Yellow/white tracer and Gray/Red Chaser.2nd the fuel pump is not coming on. Has anyone else done this swap that can shed some light on it.