Not getting fuel in my 1990 GMC Sirra pick up

i am having the same problem . but i am getting fuel from the line at the throttle boddie but it wont spray through either injector.could both of the injectors have gone out at the same time or can it be something else in the throttle boddie itself i am having the same problem . but i am getting fuel from the line at the throttle boddie but it wont spray through either injector.could both of the injectors have gone out at the same time or can it be something else in the throttle boddie itself