We just replaced the temperature sensor but the temp gauge still shoots up on 1997 Mitsubishi Galant

We just replaced the temperature sensor but the temp gauge still shoots up all the way to red and my engine light stays on since then.

Asked by for the 1997 Mitsubishi Galant
2 answers
did you repl coolant temp sensor or eng temp sensor for the gauge there are 2 types.one is for the computor and one is for the temp gauge
STOP DRIVING VEHICLE! Have the car checked for a blown head gasket.