hard miss an loud poping in neutral 2500 rpm
 

Alright I got an 2005 dodge cummins, I have recently put a 85% cp3 industrial pump, all new injectors , an hasolus a new airdog 150. Anyways it misses hard going down the road an sounds like cherry bomb exhaust pops loud in neutral.I have a video of that if anyone Ned's to see it. Please needs help on this. the truck has not got any runner on it anytime the moment. Also has aelectrical issue. I feel it's the ecu.

What is your Fuel rail pressure?

fuel psi
 

It run perfect psi. New air dog 150. 28000 psi. My gauge reads 1-30 so it runs on 28. If I get on it it drops 2-3000.

poping an hard miss
 

Also it has started missing hard all the time now. It sputters even 1/4 throttle. I'm thinking pm or ecm. Maybe electrical problem.

It shouldn't drop pressure when you get on it. It should stay consistent or raise pressure. If it's going all the way down to 3k psi that's your problem your draining the fuel rail. Something my not be right with your new cp3.

Hows your oil level?