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So the injector has no power or it's not firing?How are you checking them?
Ok, if the injectors are powering up but not flashing with a noid light, I have to think the issue is the PCM. Since bank 2 is firing as it should, this would mean the computer is seeing the signal to fire off the injectors. If the plugs are getting fuel it's possible the injectors are being stuck open. See, the computer sends the ground to fire the injectors in milliseconds. If they are staying open, then the engine is being flooded with fuel on that bank, and I think either the issue has to be the computer, or the wiring harness on that bank is shorted to ground. That however would mean that all 4 wires would be rubbed through somewhere along the engine and touching the block. This would have to be the cause.
Sounds good, hope the problem is found!!
Photo of my 08 enclosed, I know how I would feel if it were my baby :)