No Speedo

[lukeydoo]

I have a K20 MR2 Spyder and the speedo is dead at the moment. I have also removed the ABS module on the car and replaced the system with a proportioning valve to modulate braking front to back. The rest of the ABS system is still in place - ABS ECU and all four abs sensors. Checking the ABS codes, I had a few of them, but I resolved one unconnected sensor and reset the ABS ECU and now just have error code 14. Do I need to drive it for the speedo to magically come back to life? Or is something else causing the speedo issue? Any help is welcome!