All of the widebands from Innovate use a controller for the LSU 4.2 wideband oxygen sensor (most widebands use this same sensor). The controller is responsible for heating up the sensor, and also outputing the wideband and narrowband signals and calibrating the sensor. The stock ecm, uses narrowband signals only (0.1-1.1 volts). If you popped out one of the stock o2's, you could install the wb sensor in its place. The narrowband output wire would be hooked up to the ecm input wire on the oygen sensor wiring harness. The rest of the stock o2 sensor wiring harness would be unused, as the controller provides the ground wire and power to heat it up. Your ecm gets its narrow band signal, and your guage will get its wideband signal. I ran this setup on my 95 Cobra until I converted over to a Megasquirt, now i just use the wideband output.