Source problems:

Get 0.31b from www.zdez.org (source). There will be a 0.31c shortly, but maybe in extras-devel.

I'll see if I can find a KMZ with data. They should appear as KML comments with an l just after the timestamp and the obd message values.

USB Converter OBD2:

Remove /dev/rfcomm1 in the device field in the config program and replace it with /dev/ttyUSB0 or /dev/ttyACM0 or whatever the serial port comes up as. Note: I don't set the baud rate, so you will need to do stty or something similar, or set the OBD device to the device default (or wait for me to add a baudrate field).