I have recently bought a 88 fc turbo with an ancient Microtech lt8s that was installed very poorly. I had it running about 3 weeks ago then fixed some injector wiring that shorted, since then, only one injector seems to fire. I have spark, I have fuel to the rail but only the rear secondary fires.
In test mode, only the rear secondary fires. But if I turn ignition off and back on again while the ECU is still in test mode, then all four injectors begin to fire. Put the ECU out of test mode, plugged in extra cas that I had and spun it with key on and can still only hear one of the injectors firing but spark seems to be there.

Someone in the past had done some dodgy cas wiring but I can't seem to figure out why that would affect how it fires the injectors in test mode only after "key off then key on".
I know in micro text wiring diagram it says to why are the injector straight to the battery but it looks like someone wired it to the stock harness location. Could this be related to the problem? Furthermore, I have brand new primaries since the injector had shorted, they aren't seized.
Any help would be appreciated

I can send maps on the microtech or any pictures if need be