ISX running on one bank

[manolumber]

Hi everyone,
Dont have much experience with ISX but have been a mechanic for decades. I have an 870 ISX which is only running on bank 2. When I do an injector cutout each of the first 3 injectors barely caries a little power, barely any. If I cutout bank 2 the engines dies. I`ve replaced the fuel and timing actuators for bank 1 and the #1 thru #3 injectors (as per bosses orders even though I could not condemn these components). The circuits for the front bank actuators, both fuel and timing, ohm out properly and a wiggle test of the harness checks good so I cant condemn the wiring. Every once in a while the code for the front bank fuel actuator will set but goes inactive and wont set for 2 dozen starts. Any ideas?? I`m running out of ideas, any help is much appreciated! Thanks!