Relay vs temp switch???? 87 924S

[dw215]

Hey everyone

So my car over heated last night. The cooling fan did not come on, and does not come on. From reading the posts ive learned its either the cooling fan relay or the radiator switch.
BUT.. the Condensor Fan stays on continuously , even when the car is off, (this has happened for a while, i took out the fuse so the car battery didnt die). when i saw the car to start to overheat i put the condensor fan back in and the car still over heated ( maybe it was too hot already?)

Should this make me lean toward a bad switch??

Also, i put in a wilks performance chip a couple of weeks ago, would this have any thing to do with it, (oxygen sensor)???

Any suggestions??

Thanks

[JivenJim]

3 ohm resistor under dash controls this. Doubt the resistor is bad but I swiched over to manual control on mine. Your Radiator is probably clogged if one fan won't keep the car cool enough. you Should be able to turn on the AC to start the one fan.