overheating while freezing outside?

i got a 94 3.1 lumina and in cold morning the overheating light comes on right after you turn on the car. the light will stay on for about 30 sec then will slowly dim and turn off. i have change the temp sensor low coolant sensor and flushed the antifreeze in October.

There are 2 coolant temp sensors, one for the computer, 2 wire and one for the gage, one wire, maybe you changed the wrong one?

there are 2 :runaround: well i change the one that's on top of the hose that goes to the heating core so im guessing thats for the computer. where would i find the second one for the gage?

Not sure of the exact location, try the info at autozone.com, repair guides.

i looked and only found the one i already changed. the gage seems to be working okay is just the little thermostat light turns on and later dims away