I have a '93 Honda Civic LX with a manual tranny and the speedometer needle just started bouncing all over the place. It'll jump from like 20 MPH all the way up to 100 MPH, while I'm travelling on the highway doing about 60 MPH. Sometimes it just won't work at all and just rests at '0' MPH. The tach and the odometer still work too.

I'm thinking speed sensor? Anyone agree? Is this any easy fix and where is it located? Thanks!

 

Chances are, it's your VSS.

It's located on the top of your transmission, and it's held in with a couple bolts. It's a small black box with a wire plug going to it.

Don't confuse it with the backup sensor, which has a wire look coming from it.