1992 f150 5.0 4x4
was driving the other day and itjust shut off
cranks but do not hear fuel pump, engage
jumped the relay and it engauged the pump so i bought new relay and still no pump noise
jumped it again and it comes on
so i had my friend jump it with a wire in the fues box and i cranked it but wont fire
i checked for spark and i have spark

what is next? i need answers ASAP
thankyou all in advanced!