I've got an older lt12 with the wide band option. The install instructions don't mention the wide band. My sensor has a male and female 2 prong connector and with my computer I have a female plugged into a male on a harness. I'm assuming the sensor just plugs right in but the plug with the pig tail (lambda 12v and heater 12v) just need to go to a switched 12 source. On this harness there is also a 3 wire plug that appears to go to my 3 bar map sensor. The wire colors aren't exactly the same, but that really can be the only thing it goes to (I'm using stock mazda sensors for everything else). If anyone remembers how this goes, please confirm the above. Thanks everyone.