I just noticed that my mileometer has stuck on 79999, the trip Is working fine, I've never seen the digits other that In the 70 thousands, as when I bought the car nearly two years ago It had 71 thousand on the clock. It was changed from KMH to MPH for Import use prior to me buying It. The car Is a MY94 WRX, Is this a common fault, or have I just got a dodgy clock?