Engine temperature gauge not working

Hi civic-eg, the temperature gauge on my dx sedan is not working, even after an hour of driving, the gauge still won't go up.
After inspecting my engine, I found a piece of wire with an open tip near the transmission area. When I let it touch any part of the engine, the temp gauge would shoot-up to the very top, but it would return to the bottom, after removing contact.
I know the wire is attached to a temperature sensor or something, only thing is, I don't know where. Can you help me? Thanks
After inspecting my engine, I found a piece of wire with an open tip near the transmission area. When I let it touch any part of the engine, the temp gauge would shoot-up to the very top, but it would return to the bottom, after removing contact.
I know the wire is attached to a temperature sensor or something, only thing is, I don't know where. Can you help me? Thanks
