What does the ECM do with the VSS/Speedo? Is it only for lockup activation? Any error codes if it is not present?
Situation is non-lock trans, the drive/driven gears are a bit off as comparing speedometer to gps shows a difference. I could fuss with the driven gear to make it a little better, but at the moment I'm also replacing the mechanical speedometer with an electronic one that can be calibrated to display correct mph. If I don't need the VSS line to the ECM, I'll just leave what gears I have and do the correction at the speedo.
Situation is non-lock trans, the drive/driven gears are a bit off as comparing speedometer to gps shows a difference. I could fuss with the driven gear to make it a little better, but at the moment I'm also replacing the mechanical speedometer with an electronic one that can be calibrated to display correct mph. If I don't need the VSS line to the ECM, I'll just leave what gears I have and do the correction at the speedo.