Hi we have a Mazda Eunos 800M 1994 vehicle how do u clear fault codes as we do it by the book way but the codes are still there. Plus if you drive the car for 5 - 10 minutes they rev limiter kicks in and the vehicle will not rev over 3000 rpm. Plus also the traction control light comes but if you turn the ignition off then on and start the vehicle it is all good until it plays up again. The vehicle does have a few fault codes but we want to clear first a see what comes back when it plays up. Thanks Andrew The vehicle is a Mazda Eunos 800M with a 2.3 litre Miller engine.