As said something is telling the ISCV to do this, I would be checking the TPS calibration and CTS.

The CTS sole purpose is to provide the ECU with temperature info, it has nothing to do with the temperature gauge, this has it's own sender located on the exhaust side of the head at the front on 2WD.

Disconnecting it is not a solution and it is needed otherwise it woulden't be there in the first place

Martin