There was some fan function discussion 10 pages back. Has anybody made some investigation in these? I discovered that one of the cars i have uses speed 2 postition which is 115C by default, its 98 LPT. All the other cars i have touched use speed 1 102C. Thats very weird seeing car running at 115C degrees. It also blowed one of the coolant hoses recenly. I reduced speed 2 and now fan kicks in before. But still i can't understand how this can be. Was the same with original ecu and the remapped custom 608 bin.
Edit: It was bad fan relay. Speed 1 not operating. Had one spare and now its good. I always thought low speed is for AC and high speed for engine cooling. But Speed 1 corresponds to lower speed fan and speed 2 kicks in when things are getting out of hands at high temps Maybe when AC is active and fan is at low speed, then on ecu command speed 1 acts as high fan speed. Because im almost sure it will spin faster then.