You mean coolant sensor temp which is 92 doesn't reach 120 c ?
The coolant temperature is the engine temperature. It's important this stays within the normal operating range, which is between 70°C and 116°C, for the engine to be considered safe to use.
The inlet temperature is completely different to coolant temperature, and is used by the ECM to calculate air density, which is needed for fueling calculations.
The inlet temperature sensor is in the inlet manifold, and is easy to replace if needed.