Re: Temp sensor
Its a different sensor that feeds the guage on the dash. The temp sensor used to control the fan is on the rad itself on older cars, but on the thermostat on newer ones.
I think that if the sensor on the thermostat is a 3 pin type then this is the newer type. The older ones had a 2 pin type.
If this sensor was kaput though you would have some serious running problems imo, rich mixture, car overfueling when hot, running poorly etc.
Hopefully someone will be along soon to shed some more light on it........