truck starts then stalls help!!!

[dmc03]

i have a 99 silverado all done up and i live in new hampshire so i store it for the winters. well i stored it the beginning of november in january i started it up and let it ran for a while then in march when i registered it so i can drive it the truck starts and then stall immediately. i have done a fuel filter pvc valve fuel pressure regulator throttle body sensor new ignition harness which was a recall but still the same thing new plugs what else should i try. when the truck starts if i touch the gas it shuts off even quicker like it starving for gas but fuel pump is working and the pressure is 55-60 lbs. any suggestions. please help i would like to drive tis thing this year lol

[DEEPEE]

When you turn your key on to where the fuel pump runs (without cranking the motor), watch and let your instrument cluster lights go through their cycle. Does the security system light stay on after all the others go off?

[dmc03]

The Only Light That Stays On Is The Battery Light But I Had That Tested And Its Fine We Thought It Might Of Been Water In The Tank So We Drained It And Put New Fuel & Filter The Blead It That Didint Work

[01Blackerado]

Maybe , just maybe if the plae wasnt climate controlled then there could have been condensation that could get in the intake tube and heads intake runners!! Also check the MAF sensor. If it is wet at all or moist or whatever then thats the problem