Well pretty much finished assembly yesterday, today put the air intake system back on it. Hooked up a battery charger and started cranking it, took about 60-90 seconds of total cranking before the oil pressure gauge built up then it fired off and was idling fine...
then after about 1 min of run time it shut off
Tried cranking again, no joy, it wouldnt start.
Hooked the scan tool back up, now had 1500psi+ ICP, but right away I noticed the FICMM PWR was zero...
Checked fuses found #103 (50A) blown, power to FICM.
I replaced the fuse and it blew as soon as I turned the key to the run position.
I unplugged the wiring harness to the FICM, put a new fuse in and turned the key on, fuse didnt blow. I then proceeded to plug in each of the three FICM connectors in one at a time, found that the furthest most front connector was causing the short...
I pulled the turbo compressor inlet tubing off and stripped the wire loom off the suspect harness. I found the large dark green wire had chafed through and was shorting against another shielded wire. The shielded wire outer insulation was also broken.
Repaired, powered up system, fuse ok, started truck back up. Everything seems good now.
The problem area in the harness was where it runs under the compressor inlet tube, it gets smashed flat there. I should had took pics but was in a hurry. I'm assuming it's probably a common issue.
Through the process of pulling the harness loose and reinstalling it I disturbed that power wire that was already rubbed though. Go figure.
Truck is starting great and runs good.