You might be **** out of luck if your car is old enough to not use OBD-II. The sending units are the easy part as they are probably included with most gauges. I searched around for a bit any everything I see that links with software seems to work only for OBD-II. Who did the tuning on your car? Maybe you want to ask the tuner if there is a program they can use to output to ODB-II for your purpose?