I just installed this on my 84 2.5l Fiero.
My temperature gauge is not moving.
I check to see if it would peg when grounded and it does.
The other lead will turn on the coolant light when grounded(while car is running)
I tried to check the resisitance on the sensor but could only get a reading between the pins, not by grounding to the body of the sensor.
I checked the resistance from the body of sensor to anywhere on the block and got 0 ohms. So its grounded.
Could I have purchased the sensor for the ECM by mistake?
I replaced the sensor because the gauge wasn't working from the person I bought the car from. It seems that the sensor had been replaced by him also because it looked new.
It also looks just like the one I just bought.
Should I purchase the style of sensor that looks like the original?
[This message has been edited by DJV (edited 05-22-2013).]