does my 5.9 360 have a fuel shut off relay? or is that just diesels?

 

You have a fuel pump relay. Also have an ASD relay. The ASD feller will shut down the PCM, so, no spark, no injector pulse, nothing.

I think the easiest way, but, not necessarily the safest way.... to test for leaky injectors, is to pull the injectors out of the manifold, and set 'em in something like baby food jars. (or similar) on top of the engine. Turn the key on/off a couple times, to build some good fuel pressure, but, do NOT try and start the engine.

See if there is any fuel in any of the jars. If there is, those injectors are leaking.

 

Tested my injectors and they were fine. Talked to a mechanic friend and we found that the spark plugs I had in the truck were to "hot". So i put the factory champions back in it and I havent had any issue since. Just an FYI for anyone having the same issue. Thanks for the suggestions from everyone that replied.