94 z28 not showing any temp reading on guage and low coolant light comes on radiator is full didnt loose any coolant.

 

Could be the wire came off the temp, sending unit. Or faulty part. It is located on the drivers side head,about the second cylinder from the front. Under the exhaust. The low coolant light staying on is a common problem. The sensor on the radiator gets corroded and goes bad, It can be cleaned or may need replacing. It is near the fill cap. You can unplug it and the light will stay off.

 

haha I just had both of those problems. I unplugged my coolant sensor light and just check the level every other day. It is a common problem. And for the temp gauge my clip kept falling out (its only one wire). I put a hose clamp on it to keep it together and it has been working fine. You need to go from under your car.. like ^ he said its on the drivers side going into the block