This is a bent pin in a 2008 6.4L PCM. The engine would not start because the pins for the fuel pump pressure and volume control valves were shorted together. Pin #48 is actually pushed into the PCM and pin #24 is bent over into the pin#48 position. This mishap happened during a cab off repair. A slight mis-alignment can innocently cause this damage and really mess with the technician's mind not to mention shake his confidence.