Are you 100% sure the injector is not firing.

Try this:

Get a long screwdriver place it on the injector body. Listen fo the knock knock knock sound at the end of the screwdriver. That is the easiest way to tell if the injector is trying to do something. If that doesnt work then check power to the injector. I'll try to find the pin out for your ECU is you dont already have it. I have the FSM at home on my laptop.

try this ka24 pinout.

http://forums.nicoclub.com/zerothread/218674

I have a tone more stuff at home I can look up.