I replaced the tempsensor below the EGR valve on the engineand I still am not getting a temp reading. Is their another sensor on the radiator or something that I am missing? Any other ideas like a fuse or something?

My cluser is 100% working and the temp lights up full when I turn the ignition to on.

 

Um, what engine/year vehicle?

 

On my 89 Jimmy there are two sensors one for the gage and one for the Computer. The gage sensor is on the side of the engine block near the dipstick. The ECU one is by the water inlet at the intake manifold.

 

It is a 93-94 4.3 cpi engine W 4x4 s-10. I replaced the one sensor that is right by the EGR but I suppose I am missing one somewhere else on the engine, I need a chiltons.

 

It's on the passenger side, near the spark plugs (I think near #4, iirc). That is the one-wire sensor.