so i got a mass air conversion kit, i got a harness from a 89 mustang gt along with a a9l computer and stock air meter , and i took out my old harness and a relay on the firewall broke and i have no idea what it is , also when i went to plug in the wires in the engine bay, i noticed that some plugs didnt plug into eachother, if anyone can help with what relay was on the inside fire wall and what u have to do to make this harness work in a 1986 mustang gt
