See also Measuring Temperature
See also Frankenstein Analog Inputs
See also Frankenso Analog Inputs
See also Troubleshooting
In order to configure coolant temperature sensor or intake air sensor you would need to know it's resistance at three temperatures - lowest, highest and somewhere in between. You would also need to know the value of pull-up 'bias' resistor, which together with your sensor would make a voltage divider.
While troubleshooting CLT and IAT, the two most useful commands are
tempinfo - these show you the voltage registered by rusEFI alongside with input pins and resistance processing values.