Alright so my 93 SI has an OBD1 LS, and for over a year the speedo hasn't worked, but today for about 3 miles it started working properly, odometer started as well, any ideas on what the possible fix could be? Fyi 3rd gears shot. Anythings helpful

 

Are you asking for a fix for a now working speedometer? Or are you saying it only worked for 3 miles and now does not work any longer?

 

It stopped again after the 3 miles lol