I have an 89 chev k2500 it has spark and 9-13.

I have an 89 chev k2500 it has spark and 9-13 psi of fuel preasure at the throttle body but it wont start if I put fuel in the throttle body it fires no problem I will put a noid light on the injector tonight to see if I have power if I do where do I go from thereÉ if I dont then what should I doÉ all fuses are good as well im lost.