2005 3500 won't start just cranks
 

So just finished putting in 200 hp injectors, 85% over cp3, air dog 2, silver bullet turbo, afe intercooler, arp head studs, and a fluidamper. So after all that got put together we started the truck for 2 minutes then shut it off to put the hood on and pull it outside. Try'd to start it after that and codes popped up saying low voltage to the ECM, map sensor, and cam sensor. On top of that the doors keep unlocking randomly. Tested the cam sensor and wires. Everything was good. Any ideas would be greatly appreciated.

the crank sensor is also on that same code path, it is identical to the cam sensor

Also check and clean all your grounds! Fluid dampner not a good idea. do you have guages?

Seen a fluidamper before that did not have the right spot cut in it for the sensor to pickup, with no crank signal the computer would not be happy...