2011 v6 3.7L tuning problem (no ECT / overheating)

[Orangevirus]

Hello, my name is Mat and I am tuning a 2011 mustang, V6 6spd.
-editing tables seem to work fine, flashing works fine with no errors. Although after a flash the vehicle quite difficult to start (excessive cranking)

the ECT / engine coolant temp stays always stays cold. even the gauge on the dash does as well.
I tried even going back to the stock tune, and it still does the same thing (constant 59* on VCM scanner, and "cold" on the dash gauge)
Also it shows as always "cold" but then suddenly the temp jumped to max and it overheated (with boiling coolant)
-afterwards I shut the car off, let it sit for 10 mins, started it again and was back at "cold."
I cannot figure out why it is doing this, and why the master enable / disable of the ECT is not affecting it.
Or even why the stock tune is doing this.

I searched but couldn't find anything like this, has anyone else had this issue?
also the scanner does not have any KR output

[efiv6]

Hi Mat,
First off the V6 cars use a CHT ( cylinder head temp ) sensor ! there is no ECT sensor so it should be set to disable and the CHT set to enable !

[wbt]

Give this file a shot. I have been running it on my wife's car for the past several months with great results.

It is 87 octane friendly, has more power and sees 30MPG on the hwy.