Hi guys.

I would like help with the sensor in the photo.
I know it's a water(coolant) temperature sensor, but I don't know what its function is. Since there is another coolant temperature sensor (yellow) for the KE jetronic control unit. Not all RS turbos have this sensor.

​​​​​​Thanks in avance.

 

im thinking "Radiator cooling Fan"....but the switch looks different from what i remember, ??......Peter

 

I don’t think it’s a temperature sensor as in an analog output. Maybe a switch when a certain temperature is achieved?.
It’s definitely not the cooling fan as that is on the thermostat housing.

 

OK looking more into this....i now know what that sensor is, i remember now the Silver Ignition ECU wants to know the water Temp, 2 wires Brown/green & Brown go to Pins 8..& 24 of ECU. i only see it on my plans on S2s not S1s........sorry been a long time since working now. Peter