Help. The speedo is reading high. I mean really high. At 35 by GPS the speedo is reading over 100. The odometer is not working. I have been thinking about replacing the speed sensor but if I do that I would want to get a new gear for it just to be safe. Only thing is I don't know what gear to get. The car is stock. It's a 5 speed manual. It has been doing all this since I got it about a month ago.
