my injectors are not getting power so they are not firing.

i checked out all fuses, main relay. what could be causing this? i cant get the car to start because they are not getting power.

the car does have spark, battery is good, the fuel is reaching the fuel rail but the car doesnt start.

i tried running power directly to the injectors and the car almost started, but didnt as if there wasnt enuff power for all four injectors. please help!