Problems with my RAM 2004 5.7 hemi

My battle RAM to light and at a few minutes of belling goes out, already check gas pump, change PCV valve and nothing recommended me to change the spark sensor or camshaft you think?

Hello with the heat engine no longer fails, or do you just fail you with a cold engine?

When lighting means that the spark is good, and if the engine wobbles shortly before turning off it means that it runs out of fuel, when starting or when the engine staggers before it turns off rocky with clean carburetor by the admission if it takes up combustion it means that one or more injectors are failing or are very char line pressure .. anything writes again, greetings !!