my 96 5.7 vortec starts up fine with no issues goes into high idle then shuts down. it ran fine then would not start one morning at all. adjusted the time and now it starts fine high idles and shuts down. if you give it any gas it shuts down

 

Is the check engine light on? Check your fuel pressure. Really need more information, there are too many things that could cause what you describe.

 

no lights fuel pressure is good i wish i had more to tell but thats it

 

The oil pressure switch could be bad it takes over suppling the fuel pump with power once the oil pressure comes up to a certain point,there is a single wire with a black connector by the fuse/relay box if you put 12v to it it will run the fuel pump all the time

 

thank you ill give it a try when i get off