I bought a Dm-100 kit with the wide band hook up and have been installing it. for the moment i dont have the cable and o2 sensor for the wideband so im just trying to hook up the gauge. i have it hooked up and plugged in and the guage turns on but only tells me that its trying to connect to my truck.... anyone know how and or why its doing it and how to fix it? i called plx and they said it could be due to my tune. i do have my rear cats deleated but would that be whats doing it? any help would be great thanks guys...