At this point I'd plug in the injector connections (noid) and check them for pulse.http://troubleshootmyvehicle.com/chr...el-injectors-1
I'd also check to make sure that there is an engine to body ground. Without a engine to body (strap should be on back passenger's side to firewall) the injectors won't open.
With what you've posted so far sounds like it could be the problem.
Take a pair of jumper cables as a temp and use the red (engine to body) and the black engine to negative terminal.
Let us know what happened.
The PCM has to ground the injectors for them to open. Also check the crank position sensor on the back passenger's side and make sure it's plugged in.