Thanks. Odd question since the Mach 1 has digital odometer and a ecu would replacing either change the mileage. My wife bought me the car but I wanted one to give to my daughter later in life. Just right now I want it and want it to be fast lol. If I bought like a sct scanner would that add anything to my car without having a lot of mods. Would that fix my fuel issue or at least tell me if there was one.