Coolant Temperature sensor sending unit

[sevitzky]

On a 1993 22RE, where is the coolant temperature sensor?? After reading Haynes, FSM, and online searches, I can't find it.

Keywords: CTS, ECT sensor, Coolant Temperature Sensor

EDIT:

After much soul searching, it appears that the Engine Coolant Temperature (ECT) Sensor is attached to the green connector below.

[IronNam]

temp sensor on 90 22re?
coolant temperature sensor

[sevitzky]

THANKS, DubVipers (I swear I did multiple searches)


Does anyone know how to test this according to the FSM, which specifies decreasing resistance as temperature increases? Specifically, how do you measure the temperature? (No #'s on my dash temp gauge) Or do you just start the vehicle and watch the resistance dec. as it warms up?



Sev.

[thatsright72571]

its the green one, take it out and stick it in cold water and measure with a volt meter on ohms setting., should read high ohms in cold and low ohms in hot water. low being 0.2 high being 1400. hope this helps.

[sevitzky]

Thanks, that helps.

It would be easier to take it out and test it, duh. I thought I had to test the unit by running the engine and measuring the heat in the radiator...

[JatMat]

I needed this BAD! Thank You.

[pluton]

Keep in mind that the discussed sensor is the one that reports to the computer, not the gauge.