Driver's side injectors wont squirt dangit

[66sprint6]

Ive posted this elsewhere, but seeing that there are a TON of 5liter gurus in here, figured ide ask around...

Buddy of mine has been workin on rebuilding the 5.0 in my 90 coupe (http://forums.stangnet.com/758363-drivers-side-injectors-not-firing.html#) and apparently crimped the injector wiring (http://forums.stangnet.com/758363-drivers-side-injectors-not-firing.html#) between the motor and trans. After tryin to fix it, he couldnt get any spark...Anyways, he puts another spare harness in the car (http://forums.stangnet.com/758363-drivers-side-injectors-not-firing.html#) and gets EVERYTHING working, spark and the passenger injectors but for some reason the 4 driver's side injectors are NOT firing. He's stumped, him and a couple others have traced wires (http://forums.stangnet.com/758363-drivers-side-injectors-not-firing.html#) for days, swapped computers, TFI modules etc and nothing is changing it. Anyone have a similar experience or know what we need to do to figure this out dangit??? He has access to another harness but that would be a pain to do again. Any ideas????
Thanks guys, im diein to get this thing back on the street!!!
Matt

[bossjb]

Unplug the big harness at the back of the engine by the firewall and clean the terminals on it and make sure they're connecting good and not corroded. Ford also added in extensions on these harnesses. One has a white plug and the other is a black plug. Thats what I would do first. Keep us updated, I'm curious as to what the problem is.

[66sprint6]

I got an amazing list of what to do on stangnet and were gonna go thru it this weekend, ill def. keep this updated! Part of the list is to do exactly what you said, check out the "salt and pepper shakers" lol
Matt

[ReefBlueCoupe]

You might also try posting the question at www.hardcore50.com