ISX - Injectors Cutting out

[azine]

History: I bought the truck with 740k. It had an egr delete done by the previous owner. The truck started missing/cutting out so three of the timing/metering actuators were replaced along with all 6 injectors. Truck has always galloped/loped at initial startup in cold temps and has always had a problem finding idle such as if operator were to kick the truck into neutral and coasting to a stop sign etc.

Fast forward to today. Fresh overhaul. Replaced the last of the actuators in hopes to fix the gallop/lope/idle problems. Reused injectors as they only had 125k on them. Mechanic started truck and had the same gallop/lope AND three of the cylinders are now cutting out. Switched ECM from another deleted truck. Same problem. Any suggestions?