Fuel Pump wont pump
 

I have a 1990 Olds 98 Regency and replaced the fuel pump,strainer,fuel filter and the fuel relay behind the glove box.Also checked the fuse,it was good.The
pump runs for a few sec when the key is turned on but I am not getting any fuel to the pressure valve on the fuel rail.also replaced the wiring harness.checked the spark to the plugs and we do have spark.I am running out of things to try.
Has any body else ever had this problem? How do I fix this?

checked all fuel lines? for kinks etc..