After checking fuel pump on Nissan terrano the car still wont start does anybody know why?

CHECK FUSES then try 1 & 2 immediately below this; 1. remove the air intake duct/boot just before the throttle body/intake manifold entrance and open the throttle then spray starter fluid into the intake manifold for about 3-5 seconds. 2. put the intake duct/boot back in place and try to start the car. If the car attempts to start then it is a fuel system\delivery problem - See below for possibilities. A few possibilities are; 1. the fuel pump may work but the fuel pump pressure is to low; check the fuel pressure with a pressure gage 2. no ignition/spark; some cars will not allow the fuel system to operate without igntion available- make sure there is spark. 3. fuel injectors may be bad causing the ecm (computer) to shut down. 4. bad or inoperative starting injector - this model may or may not have a starting injector. 5. throttle position sensor bad or out of adjustment. 6. bad ecm/fuel pump relay 6. ecm (computer) is bad - (this most likely isn't the problem but is a possiblility). 7. wiring problems; open or shorted wires