OK, latest update is that I’ve installed a new temp sensor which has made no difference whatsoever. Gauge and OBD still reading anything up to 120, fan kicking in when gauge and OBD read 100 but laser temp check at site of sensor shows a nice working temp of 85-90. Scratching my head with this one now🤔🤔🤔🤔🤔
Sorry to hear that Neil. Just bear in mind the limitation of the laser reader. It will only be reading the temp at the surface/air boundary which is very different to the internal temp. That will be a gradient across the head anyway. The sensor however is recording the coolant flow coming from around the combustion chambers which is much more pertinent.
Also if the sensor was faulty or out of range the ECU would be throwing an error code.
Are you seeing 120C when the car is traveling or when the car is stationary/idling?
