98 ZX2 Cooling System problem...

[jp2time]

Two days ago, the temp in my city dropped to 45 degrees, That morning on my way to work, I noticed my temp guage move from the middle (where it normaly is) toward Hot.

I also noticed the fan was not coming on so when I unplugged the temp sensor, the fan turned on but when I plugged it back it back in, the fan would go back off.

To make a long story short, I've changed out the thermostat, Temp Sensor and also drained and filled my radiator.

But the temp guage is still moving toward hot if I unplug the temp sensor. Any clues out there would be great. Thanks, J.P.