Hey Scotty, I have a question. I just replaced the thermostat in my car because the check engine came on and i checked the computer codes and it said my engine was cool. Once replaced, the gauge didn't move until i reset the codes. It worked for a bit until i noticed that it stopped working. I reset the code and the gauge worked how it was supposed to. I even drove it for a bit again and i saw it moved closer to the middle so clearly it was working. It also never over heated. I also opened the hood and felt that the engine was at the right temp. Im just wondering if it could be a computer problem because ive never heard of this happening before.