if the harness is shot, any further movement means more problems. maybe the injectors WON'T pulse after you fix the ignition stuff. i'd pop for a harness before going any further. there may be power or ground someplace it doesn't belong. you'd be suprised at how much damage is in there that you can't see. there are 20 some wires to the fuel ecu that run with the rest of the engine harness. imagine the possibilities. any flaky harness makes me real suspicious. in the old days, we used to fix them as they rotted. learned after a while that only made things worse. as far as colors go, you're gonna need a diagram, too many to remember. good luck, chuck.