the sensor will therefore estimate the temperature in the water cooling circuit. It makes it possible to check that it does not exceed the critical threshold, which then produces the ignition of the fan located in front of the radiator. (bmods) This also makes it possible to control the injection as well as possible (the computer, therefore, uses this data). The temperature is measured electrically.
Indeed, the electrical resistance of an element (platinum in our case) varies according to the temperature. By measuring resistance (more or less difficult than electricity in passing through a body) we can therefore deduce the temperature it is. Note in passing that heat is embodied by the movement of atoms. Measuring temperature is exactly the same as measuring the motion of these quantum particles.
Located in the exhaust (there may be several), it allows you to see what the gases leaving the engine are made of (depending on the number of oxygen particles, the voltage sent to the computer varies). Thanks to this, the computer will be able to best adapt the oxidizer/fuel mixture in the combustion chambers. Indeed, it adapts what goes into the engine by observing the result of what comes out, it, therefore, deduces the ingredients to add or remove.