Expose display limits for Engine Temperature
Here is PR to externalize code, you will need to add this to the default settings.txt
setprop persist.sys.gauge.temperature.cold 46
setprop persist.sys.gauge.temperature.hot 125
setprop persist.sys.gauge.temperature.lower_bound 38
setprop persist.sys.gauge.temperature.mid_point 109
setprop persist.sys.gauge.temperature.upper_bound 150
Edited by Andrew Leech