If your cranking on it is there at least unspent fuel coming out of the tailpipe? If not I would say your having issues with your glowplugs or GPR I had to replace mine last winter. It would only start after being plugged in for awhile but even at 30 40 degrees it wouldnt start after sitting over night. I've worked in the IT industry for 20 years and one thing I always do is start with simple things first and work your way though a system.

Back to work on F350
 

Returned from west coast project, back still trying to start F350 /7.3

I have a reader and bunch of codes

1280 ICP to low
1210 ICP to high

198 Oil temp high (eng cold)
1119 Air temp high (eng cold)

1690 waste gate failure (intake plastic manifold off)
475 exhaust pressure failure

340 Camshaft position sensor ckt. malfunction / Open/grounded circuit, sensor fault, short to power

but I have rpm reading via port plus tach reading
(changed CPS 4 times / ford parts, rewired to top of engine in harness)

640 manifold Intake heater

anybody familiar with these codes / have input

thanks for your time