I recently installed the Innovate LC1 wideband oxygen sensor and their digital XD16 gauge to use to monitor my air/fuel ratio. I got it hooked up, calibrated and went to drive my car. There are two LEDs on the front of the XD16. One says AFR/lambda and the other says % (percent). When my car is powered up, the percent LED stays lit. I have had my setup programmed two ways. 1) LC1 on Ethanol and XD16 on Lambda and 2) LC1 on Gasoline and XD16 on AFR. Either way, the percentage LED stays lit. Why is that? what does that mean?
Thank you