How do you replace 1992 Nissan KA24E fuel injector O rings?

with the car off, pull out the fuse for the fuel pump, its located in the fuse box in the engine bay. With the fuse removed, start the car. its should run for a few seconds and die. with this done, remove the bolts and screws holding the fuel injectors and fuel rail assembly together. Pull out the injectors, and pull the upper and lower o rings off the injector. Take the new injectors and rub a little oil on them prior to installing them on the injectors, or putting the injectors back i nthe fuel rail assembly. install is the reverse of removal. reinstall the fuse, and start the car, checking for leaks.