07 columbia speedometer wiring

I had my ECM redone and an EGR delete and every since my speedometer hasn't been working and I get code ECU 128 on my dash. I think its the speedometer wires from the ECM but I don't know which ones they are or where they go before the dash. I have no speedometer coming through the port by the door as well because my EOBR doesn't read it as well. Any one know which wires they are or where they go?