How to change a heat sensor

i wanna change my heat sensor in my 01 infiniti i30 can somebody tell me how to do and where is it located

Typically there is one for the gague in the car and one for the cars engine management computer. They both thread into either the upper radiator hose outlet or some place in the intake manifold.

You must identify which one you desire to replace and its exact location.

Unless your talking about a sensor that detects the temp. inside the car or outside the car.

Or if your talking about the sensor that detects the temp of the air being drawn into the engine.

Do you mean the “heat sensor” that is related to the thermostat for the heater inside the car?

Or do you mean the engine temperature sensor?

Why do you wanna change it - just because you are bored?