Hi, I have a 2006 that developed an issue towards the end of last year. I am getting a random high idle ( rises to 1900rpm from 1400rpm), about 2 seconds later the Fan switches on and stays on till the revs drop again. This can last for 2 seconds or 2 mins, can happen between 70’C and 102’C. The Fan still cuts in at 103’C and off at 100’C with no rev rise. I have checked out the ECT sensor and wiring all seems good. I’ve just checked the valve clearances all are good, plugs all good. I had the issue before checking the clearances. Ran out of ideas.