The rev limiter is so you dont blow up your motor my 93 3.1 had it and so does my 05, nothing to worry about. When I had my 93 I thought it was fubar also cause it would hit 4k and die. Not sure if you have a knock sensor in that car, basically the knock sensor retards timing when pre detintation occurs so your car wont blow a piston. You shouldnt have to worry about a knock sensor unless your car is running hot or your modded. Someone correct me if im worng.