Yep, short in system, to include possible bad sensor.
What brand sensors did you use to replace your cam and crank sensors? Keep open to possibility that one of your new parts is bad or poorly compatible. This happens frequently.
Take a look at videos for testing 5 volt reference. Your choice now is to throw parts at the problem, or isolate to the source.

 

I tested the fuses and there was three that wasn't showing voltage could that be causing it? I'm going to watch the video on testing

 

What 3 fuses weren't showing voltage?
Did you check them for continuity?

 

Yes and they are showing voltage and those codes are gone not now it's throwing codes P0340 and ice already changed the can and crankshaft sensors

 

I thought possibly that the camshaft sensor was bad that I got at O'Reilly's since it wasn't factory

 

Gonna try Cam and crank position sensors then try gas and a match ! TIPM, Front Control module, new battery and terminals. Jumped ASD. I don’t give up easy but dang ! My Autel Maxicom 808 scanner shows no codes. Good strong crank and no cough or run. Gotta be something electric and simple. I will report back if I figure it out.

 

So my Daughters 2003 durango 4.7l was throwing codes for cam sensor and evap leaks. I replaced the evap solenoid and checked all engine compartment hoses that I could see for cracking etc. While running the engine I noticed a clanking kind of noise near the front cam shaft area minor clatter but wasn't there until the engine warmed up or at least wasn't as clear. I shut it down to get my code reader connected and when I went to start it again it would not start. It showed the cam sensor still and I believe crank sensor code so I replaced both and she still wont start up. I tried an either start with no luck but did find it has spark at least at #1 cylinder. Any thoughts? PS I tried going through all the videos I could find on engine issues with the 4.7 people have found wrong just not that sound mentioned I heard.