s14 wont start any help

[S14_ZX10R]

i just got done swapping in my sr20det into my 1995 s14 kouki started it the first time started right up took it around for a drive and then truned it off and wired my boost gauge i plugged it the postive wire in the 15amp fuel pump fuze next to the clutch pedal and grounded out the negative wire then i tried to start it again and it starts for 20 seconds then just dies out and my fuel pump relay EGI relay next to the ecu starts buzzing when i turn the key into on ignetion mode im running a AEM 320lph and when i crank the car the fuel pump shuts off and i keep blowing the 7.5 fuze under the hood any help guys