Depends where the gage needle actually sits. If at the cold position yes check the fuse but I doubt that is the problem if all other gages are working. Most likely the sensor is bad or the wire from the sensor to the gage is bad. Sometimes it is the positive wire or ground at the gage and once in a while it is the gage itself.
Hi, yes it just sits on the cold position when i start the car it twiches only once but it doesn't go up and my local street mechanic said that it ist the sensor b/c i recently change it and since i dont have the fuse box covers im thinking that it might be a fuse but i dont know which one or it could be the wire as you stated.
First wire I would check is the wire from the sensor to the dash cluster. Many times this wire breaks, disconnect the wire from the sensor and using a DVM meter on the ohm (resistance) setting and see if the wire is shorted to the body of the car, or if it is broken (open circuit). Then I would check that the gage has power and that the ground wire is working. If not in the wiring then it is the gage is faulty. If you need more help just let me know.
Sorry it sounds like a Issue with a Stepper Motor, Not a bad fuse or broken wire. Sadly they do go bad from time to time and one can do it them selves or have someone do it. Even may be cheaper to buy a used cluster. However you can buy new motors online for cheap. Some places will even sale a kit that offers the motor, leds, soldering iron and all that would be needed to do a new setup for I think under 30. Some offer a Desoldering pump and some LEDs or just normal bulbs there are many options out there and no one is really the right one. Just have to look around for one that is best for you.
If you don't have a Soldering pen, or De-Solder pump I would go that way to get the best for your buck. If you haven't soldered before I would do some testing on other things before you work on you Cluster. Also some people offer the tool to take off the needles, if you get one without this tool a Fork works just use some cloth for keeping scratches down...