When first crank truck up firing up wonderful then cut off go store or home for couple hours try crank it crank but no start I was like crap. So I check code no code I check my scan tool with fuel psi key on close to 40 that good and crank still on 40 so it not fuel pump so I caught the dash board where mileage is I crank again same thing no start it said oil low pressure. I check oil dip stick it full I had it change two week ago.. I check rpm see if get any number when crank it dose got number quickly when crank so crank sensor fine so ... also not sure if oil will effect it I normally put 5-20 synthetic blend motorcraft all time but last two week I got 5-30 synthetic blend motorcraft oil help me out

 

You say you have fuel pressure,, do you have spark?