ok so here is the problem. i have a 91 rex with a OBD1 gsr swap. stock p72 ecu. i just wired up the entire cluster and everything works except the speedo. there is a yellow/red wire coming off the back of plug B1 on the siR cluster. it goes to the VSS on the cluster. it is wired already to pin b10 at the ecu. which is the VSS pin on the ecu. now to run the electric speed sensor, i have the power and ground hooked up correct as i am recieving voltage out of the signal wire. i have tapped the signal wire to the b10 wire going from the ecu to the cluster. this is the only info i have found to help me over the two days its taken me to install this cluster. what a pita.. so with this way and all of these other ways i have tried i still have no speedo. someone please help!!

 

is it a cable or electronic vss?