May I ask which ESC and FW versions you’re using?
looking at your temperature traces, your motor temp. line is definitely a bit noisier than your ECS temps. but in reality not too bad at all…
looking at this:
and then this:
even though we have the worst situation of the sensor wire routing, at least they’re grouped together and running separately away from the other sensor wires…
I think I shall try running with the motor temperature sensor active and set to max and see what happens on FW5.01