what exactly is wrong?
Go to a Honda dealership and ask them.
You can fix the speedometer in your 1994 Oldsmobile 98 by replacing the speedometer cable. If changing the speedometer cable does not fix your speedometer you will need to replace the entire speedometer.
A 98 Civic does not have a speedometer cable. It is an electronic speedometer. So if you are having problems with it not working the most likely culprit is the vehicle speed sensor (VSS).
there is most likely a censer on one of the wheels of the vehicle
There is no speedometer cable - all is electronic. A speed sensor mounted on transaxle connects to the back of your speedometer cluster, and trasmits that way. It's not mechanical like old cars.
get a used one and replace the computer chip on the back of your speedometer. you have to pull the whole cluster apart. There are two screws above the radio so you will have to pull that out to to get the cluster out
Have vehicle scanned to determine the problem
Buy a Honda
try pulling out the dash. there should be a cable of some sort back there. spray some WD40 on it.
how to fix speedometer for Toyota mr2
it could be the speed sensor or bad cluster. the speed sensor is around $100 at your local parts store.