7mgte issues need help doing diag

[touge_monster86]

i have a 7mgte that i recently changed the head gasket on . every thing is timed right im sure because when it does start it runs clean but the problem is that it wont run . it will start up for about 5 second or less run clean then just shut off and then i have a heck of a time getting it to start again . i usually have to have some one mess with the cps and feather the gas to get it to fire up . i am stumped the fuel pump works i got good spark, the efi relay get's really hot some times, and as far as i can tell i got pressure in the line up to the fuel rail.
i have no idea 7mgte is new to me so if any one could give me some assistance i would really appreciate it