I have an ARC2 by Split Second to adjust fuel/Air if that is what you are referring to. The car is now at a mechanics who told me one of his guys could not get spark to the plugs but he has not put much time into diagnosing the problem. I am suspecting that it might be the ECU has gone bad. I did get it to turn over and drove it on 3 short trips although it did want to misfire in lower gears. There are not that many around here who can work on a modified Stealth sad to say.