Hi Chris,
Currently, the gauge inputs on the EMU-1 config do not support Exhaust Gas Temp. This data is usually contained within PGN 130316 [Temperature, Extended Range], which is a PGN that the EMU-1 does not currently output.
I have seen various customers attempt this using the custom gauge tool and creating their own graphs using the voltage values against a temperature value, however nobody has ever confirmed success using this method.
Thanks!
Josh