Coding that number 5 injector circuit is open need to know how I can correct the

You changed the motor? Well, #5 injector may be faulty. Did you replace the injectors when replacing the engine? Did you swap from the old engine? Or did you obtain a used engine with injectors already in it? Circuit testing with the wiring is important, as the injector circuit is just that -- the circuit -- inclusive of wiring, connector, module control and the injector itself. Testing is needed, hands on. www.repairpal.com/repair-shops