The easiest way to find the problem in the speedo is to raise the left front wheel and while an assistant rotates the wheel you disconnect the cable to the lambda counter and see if the inner cable is turning.If it isn't the trouble is between there and the wheel for instance the angle drive, the drive cover, or lower cable. If the inner cable is turning reattach to the counter and remove the upper cable. The lambda counter should now be turning. The problem is now the upper cable or the speedo itself. Most of the time the problem is between the wheel and lambda counter. Make sure that you have properly attached the cable to the counter and that there is a support bracket on the lower cable. To check the drive cover remove the left wheel and in the center is a round plastic disc. In the center is a SQUARE hole that engages the cable to the angle drive. Sometimes it will get rounded out and not turn the square cable to the angle drive. When you rotate the square cable if you remove the lower cable from the angle drive you can see if the angle drive is turning. while you are there it should be lubricated. Remove the screw and shoot some oil or light grease into it. David Teitelbaum vin 10757