Ka24de speedo help

[sidewayzcraze]

hey guys. I recently bought a new s13 and discovered the speed sensor is way off i.e: true speed:65mph speedo shows: 105mph lol. It has a welded z32 diff and that's about all I know. Does anyone know how I can fix this problem?

Thanks!

[jdmjap808]

Change the speed sensor on the trans. A common problem or check the connection on the back of the cluster first. 240's are famous for this problem. My KA and my SR both are real of but they go back to normal sometimes