I would like to know what type of diagnostic socket mount my golf 4, year 2001, engine code AXR. I put an adapter obd2 elm 327 bluetooth but does not communicate with my pc and with the application torque for android. My grip ? type obd2 or can bus? Trying the same adapter on the golf year 2003 of a friend of the interface communicates perfectly with the program torque for android. Thanks