Injector Problems

[Meisner]

I think my 95 F250 has bad injectors, not 100% sure though, when i start it it misses on the front 3 injectors of the right bank, but once its warmed up it will run on all 8, i have had the truck hooked up to a computer and manually forced the injectors fire and when i do that it will run on all 8 cold. Replaced o-rings, valve cover gaskets, glow plugs, and checked wiring from glow plug solenoid to plugs as well as connectors from the injectors out all are good

Thanks in advance.