ok i got a wiring harness today and i cant seem to find out what wires are needed and what arent. someone cut a bundle of wires from inside the car (didnt notice till i got it out) it is not the set of wires going to the cpu, it is the whole bundle that branches right before it. do i need those or are they for gauges? if anyone has a color wiring diagram it would help out. thanks for all your help.

 

mustang and thunderbird same harness?

 

cpu???? no. There are no CPU's or computers of any type on an old mustang. The biggest technology they had as far as electronics, was probably the radio.

 

no i know im doing an efi swap, the cut is on the new efi harness. i took it off a thunderbird 5.0 efi.

 

bump

 

well i am not sure but i color code like all lighting is red, all engine and ignition is yellow, everything else black unless i feel i need to designate it make things easy