mustangmike33

im taking a 89 gt convt standard motor and putting it into a 91 coupe automatic 2.3 body. we got the motor put in, all wiring is plugged up. car will crank but no fire and no fuel. so, upon further inspection, one of the plugs on the driver side isnt plugged up. the harness out of the coupe that comes out of the firewall on the drivers side only has one plug where as the5.0 motor has two. will i need to pull the harness out fo the gt car from behind the dash as well to complete the circuit? or is there an easier way?