Since we are talking about it, here is the simple log I did about a month ago.
Where the vertical blue line is, in case you cannot read the numbers:
-Coolant temp 215.6°F
-Intake air temp 124°F
-Rad/fan duty 55%
The red line jumps up again after the vertical blue line from 215ish to 219 but the rad/fan cycle does not change until it gets to the top above 217 degrees. So yes, it is very much a, target must equal value or it does not change.
