Need some help on HUD

[rack em willie]

Ok, new to the sight and had a question nobody could answer on my local forum. I drive a 92 coupe with HUD and blew the motor last year so i bought a 5 speed 240 with regular speedo. Did the 5 speed swap and now my HUD just reads 0mph at all times. I heard the digital speed sensor and analog send different electrical pulses which is probably my problem. Just want to see if anyone knows whether thats true or not??

[projectRDM]

Completely false. The VSS is the same for all manual models 89-94. The auto VSS is different though, which one are you using and are you sure it's plugged in?

[rack em willie]

It was an auto then when it blew i did the 5 speed swap