Yes Steve, that does make sense because there is no real reason to know any temperature under 100'c
My temps do increase as expected.
This van is now back with it's owner so time will tell if it is going to do a correct regen.
Would like to find out if like Kevin said, not sure if IDS can activate the pump.
Apparently Autel does activate the vapouriser pump.
Just operating the pump would prove the wiring back to PCM and the PCMs ability to earth pulse that pump.
One other thing is I could not find a temperature sensor anywhere around the turbo, there is a blanking plug where an O2 sensor/temp sensor would go.