I recently changed my radiator fan trigger from manual to ecu controlled. Around what temp should the ecu be triggering it to come on? They haven't come on yet. The factory gauge(with resistor) reads okay and the manual gauge (upper radiator hose) stays around 180*F in 80*F weather. I have gotten it up to 210*-215* at long stop lights, but still no fan.?
I have it wired like this through bosch relay:
Batt+ power = 30
12v out to fan = 87
Ig. switched power + = 85
ECU fan trigger (ground) = 86
Edited by Carl B., 04 May 2014 - 04:59 PM.