Oopsie. In the below..I was assuming you were pulling the injector connector.
This test will tell you if the problem is in the wiring or with the injector. Blinking means the injector should be pulsing (Injector is the problem) and solid means the wiring is the problem.
Originally Posted by BillBoost37
When you pull the plug off the injector, put a small bulb in it...like an old side marker pinch bulb with the tabs pulled down to fit in the connector and look for it blinking. If it blinks then most likely your injector has failed.