I just purchased a 97 powerstroke that has a chip/programmer but I have no idea what it is. I would like to remove it and purchase a quality chip but first need to figure out what I have. How do I go about finding what is currently installed on my truck and removing it? The previous owner has had the truck for about 4 years and he claims it "came with the chip" but has no idea what it is. Any help would be greatly appreciated.