further to above and on discussing with a friend who is mechanically minded am coming to the conclusion that it is not overheating at all but the gauge thinks it is and is telling EcU to go into failsafe mode. Reason being that the temperature fluctuates too fast from 124C down to 100C in 30 seconds and back up in same superfast time which is impossible according to my friend. Could it be the Cylinder Head sensor is giving false readings and why would this be could it have been overtorqued when changed??? Or is it the ECU? Any thoughts very welcome.