Am selling my scan gauge, I like it alot but I want the money for other things, the picture is how it is setup in my car, I will leave all the settings the way it is so I would think if you buy it, plug it in, all the gauges should work. but it is setup for a 3.4. Shouldn't have to change much for a 3.8. I have the original box and book. Asking 125 plus shipping.