Recently replaced my bad transmission with a junk yard transmission. Now the speedometer does not work and won't shift past 2nd gear. Speedometer only reaches 10 mph when actually traveling about 45. Have already changed speed sensor on transmission and did a reset of the pcm. Need some help please.

Thanks

 

Did you change the input sensor by mistake?

 

Did you figure out the issue ? I am having the exact same problem . I know the transmission i installed was working in the vehicle i removed it from . But now , wont shift and speedometer is not working