I have a BAFX OBD-2 bluetooth adapter and syncs fine with my Torque app. Im able to read everything except Trans oil temp. This same hardware works fine on my 2003 Expedition and able to read Trans temp with it. I added the "Trans temp" gauge using "Manage Custom Ford PIDs" as well trying the default trans temp gauges from the Torque app, but maybe the 2007 Explorer uses a different formula for calculation? Protocol is set to J-1850 SAE