[ls1nova71]

Didn't you say it tried to start on the starting fluid? If it tried to start, then I would think the wiring would be alright. If you suspect the fuse box, have you checked for power at the coils and injectors? If you have power on those pink wires, then check all the other pink wires for power and the two orange wires for constant power. If all your powers are good, make sure you have your grounds grounded good. This is most likely going to be something simple you are overlooking. You can basically take all the pink wires and the two orange wires and tie them all together, add power to them and if you have fuel and grounds hooked up, it will start (VATS deleted of course). I have started several on the garage floor this way in less than a half an hour. But before condemning the harness, have someone turn the engine over while you listen and feel the injectors to see if they are working. You can put a large screwdriver on one and put your ear on the handle to act as kind of a cheap stethoscope, and you should head an audible "click", you can also feel it. If you don't get that, then you need a noid light to make sure it's getting a signal, but if you have power to them and your grounds are good, they should work. If there's no signal to them, check your crank sensor behind the starter. Make sure it's plugged in, and if it is, pull the loom off of it and trace it for as long as you can to make sure the wires are not damaged. If you feel a soft spot in the wires it could mean the wire is broken inside the insulation. But before all of this, I would spray a little more starting fluid in it and see what happens. Open the throttle body and spray it in the intake, just don't go crazy, a second should do it (count one Mississippi), then try to start it and report back with what happens.