starting problem
 

my 2003 dodge wont start with the key, it turnes over good but won't fire,
Ihave replased the transfer pump, and it still won't start. I was told tonight that the cummins has two oil pressure sending units, and if the one that goes to the computer
is not working it wont start.
In the chilton I have it only shows 1 sending unit.
I also replaced the cam sencer
any help wood be great

Bad Key would start then shut down. Bad injectors would do it also and a PRV is also suspect! Can you get a pressure reading on the rail??

03 dodge cummins won't start with key
 

the engine does run and runs just fine, but it won't start with the key, it turns over but thats it!