Originally Posted by Que89YJ
Flipit check on the ecu and see if this wiring diagram matches your ecu and if you have a wire for that pin. If you do then we are going to be able to get you setup real easy.
okay, bare with me as I'm not out of bed yet, I will send a picture to visually show what I'm about to explain.
pin 19/the green wire with a yellow stripe- herein referred to as wire 19-
so, if you hop in my jeep now,
and you look inside,
sitting on the A/C is my ECU.
there is a bunch of wires coming out of it,
and out of pin 19 comes wire 19,
a couple inches down wire 19, there is what I call an add-on splice.
if you dunno what that is,
pictures will be here after breakfast.
so, out of the add on splice comes another wire of the same color.
so this wire 19.5 shoots straight through the firewall,
and in the engine compartment it is attached to an eye terminal.
said eye terminal is screwed into a post,
and the opposing post has another eye terminal,
which conveniently enough is the hot wire going to my fuel pump.