what are you getting for injector terminal resistance? it should be 11-13 ohms at 20 celsius.
you should also test the harness connector to the ground. should be the same as battery voltage, but you have to test it within 3 seconds of turning on the ignition. that is the OE harness, and i suspect that the bazzaz should be the same.
if it is a pooched injector, dieselpower1988 may be worth a pm.