Is it possible to order a fs1, fs2, or fs,3 that will work on a 1992 Buick Century with a 3.3 liter. I looked it up and they hook into the obd-II connection and I have that connection. Has anyone tried these on a car that's older than 1996 with any luck? I don't want to fry the existing computer or ruin my motor but I would like to use one of these if I can.