Temp sensor in 1997 tahoe

[dan468]

Just purchased a 2 door 97 Tahoe. The temp gauge doesn't work. I was going to replace the sensor until i realized the gauge doesn't even twitch with key off or key on which lead me to believe it may be a power issue. What do you guys think? This is the first Chevy I've owned in this generation (96+). Also I noticed that the sensor has two leads, one for gauge and one for fuel injection algorithm? Just a guess, thanks everyone and happy sunday