1994 z28. blew my head gaskets acouple months ago .bought new temp sensor for head and water pump. my temp gauge on my dash still will not move at all... the car isn't running hot either from what my scanner shows. my temp needle/gauge is dead i guess.. the wires for the temp gauge sensor are all fine and have power going to them.

 

Ground the sensor lead and see if the gauge pegs. That will tell you if the wire and gauge are ok.