I installed a VW Corrado G60 vehicle speed sensor on my transmission. The sensor itself has 3 pins. +12v, ground, signal output. The signal I connected to pin 8 on EC18. I do not see any speed readings at all.
Possibilities:
my v3.2 board is not equipped for a speed sensor
the ECU is expecting VR and the sensor is probably hall type
misconfiguration in VT (I expect that VT would show some speed just not accurate speed, though if anything was working)
-koabi
PS: I hooked the signal to a new electronic speedometer I have and it works, though with some strange issues particularly at low speed. It's accurate otherwise.