Ok, I got it working!:biggrin: I tried tying into the green wire coming from the photo cell to the buffer and that didn't work. Next I tied into the brown wire going to the ECM and the red wire going to the cruise and left those harnesses plugged into the buffer, it still didn't work. After this, I unplugged the harnesses from the buffer and it worked, the ECM is now reading a speed signal.
I have the same issue! So in other words you used the speedo sensor from dakota at 2000ppm connected the brown and red wire to Speed out terminal on the Dakota brain and unplugged the harness from the buffer..In other words the buffer and wires with the sensor on the end can be scraped?
I'm doing this now. You happen to remember what the final verdict on this procedure is? My car is disassembled right now and I'm hoping to install everything with as few issues as possible once its back drivable again