I’m not sure on the autometer but with my inovate you have to actually program the gauge to read whatever you want while it’s warming up and to whatever fuel you are running ect. Here is what I would do take the sensor out while it’s still plugged in and spray some brake cleaner in a rag and wrap it around the sensor while it’s powered on . Be careful the sensor gets hot . The gauge should read crazy rich if it doesn’t your sensor is toast if it does read right then you actually have fuel issues and need to figure that out before you go WOT again unless u want to change your head gaskets .