fuz

Hi guys, Want to know how to fix this speedometer problem. I have a LS400 '93, whose speedometer does not budge until am doin 20Kmph, (used the gps to figure that out) After that the error continues, i.e when the spedo showes 120Kmph its actually doing 150kmph, any ideas? Oh, the rpm & temp and other guages are doin fine..... Thanx