Engine Coolant Temp Sensor for TBI 7.4L

[wb292]

Is this sender a open/closed temp switch? Or does it send a different ohm reading as the temp increases?

 

[PlayingWithTBI]

Ohms, here's the readings you should see.

http://www.gearhead-efi.com/Fuel-In...oolant-Temperature-Sensor-Diagnostic-Test-CTS