Trouble!!

[TwinTurbo]

I'm hoping its just bad luck and coincidence, but I got my chip, installed it carefully following the instructions, and went for a test drive. Everything was working just fine, after about 10 miles the truck just died like the key was turned off, cranked just fine but no restart and the glow plug light was flickering and wouldn't go out along with the IDM relay clicking rapidly. Towed it home and removed the chip - same thing. Checked fuses - #9 20amp maxi fuse for powertrain control system was blown, replaced and glow plug light returned to normal operation along with the IDM relay. Thought I had it nailed, fuse did not blow again but still no start and no tach movement. Changed CPS but still no tach movement. In the process of checking wires now but its outside @ 25* and a 25mph wind so I don't want to spend any more time than I have to chasing things so I thought I would see if anyone has run into anything like this before or has some helpful advice. I don't know anyone near me with the same truck to swap IDM's or PCM's with to eliminate those possibilities either. Thanks.