I have troubleshooted my wife's mini down to an injector not working, I have replaced the injector with no help. I replaced the ECU and that only fixed my dash lights, the wiring too the ECU is good. My knowledge of the tach sensor being bad, I should have two injectors not working, now not sure if I'm wrong. There is voltage to the injector, measured the resistance to be good on the injector. Not sure where to go from here. The injector is obviously not getting the signal from the ECU. Thoughts?