I have searched both the forums and google and can't find a surefire answer. I know that my 04 Coupe is now 21 years old so it will have its share of electrical problems but are the that's known for being inaccurate? I have just started driving my crossfire daily while my truck is in the shop and have noticed that the vehicle hits the fuel cut/rev limiter at 5k indicated on the tach. I do have an ABS light and TCS light on, do they have anything to do with it?