Checking the engine air temperature sensor (Skoda Fabia 6Y)

Temperature sensor of the air entering the engine 1.4 l, 55 and 74 kW

Engine air temperature sensor 1.0L, 37 kW and 1.4L, 50 kW

1.9L 74kW Engine Air Temperature Sensor

(Data copied from the portal: www.SkodaBook.ru)

Graph of the dependence of the resistance of the temperature sensor of the air entering the engine on the temperature of the sensor

The temperature sensor of the air entering the gasoline engine is combined in one housing with the air pressure sensor in the engine intake pipe. Both sensors are non-separable and can be replaced together.

1. Disconnect the wire from the battery terminal.

2. For gasoline engines, remove the upper engine cover (see subsection 2.1).

3. For vehicles with diesel engines, remove the right headlight (see subsection 10.8).

4. Disconnect connector 1 (see the figure 1.4L 55 and 74 kW Engine Intake Air Temperature Sensor, the figure 1.0L 37 kW and 1.4L 50 kW Engine Intake Air Temperature Sensor and the figure 1.9L 74 kW Engine Intake Air Temperature Sensor) with wires from air temperature sensor 2.

5. Remove the temperature sensor and, connecting an ohmmeter to contacts 1 and 2 of the sensor, measure the resistance of the sensor.

6. Heat the sensor to approximately 80°C, for example with hot air, and measure its resistance again.

7. Compare the results obtained for gasoline engines with the graph in the figure The graph of the dependence of the resistance of the temperature sensor of the air entering the engine on the temperature of the sensor, for diesel engines - in the figure Graph of the dependence of the coolant temperature sensor resistance on the sensor temperature. For example, for gasoline engines, the sensor resistance at 20°C is 2.3-2.6 kOhm, and at 80°C, it is 290-330 ohms. For diesel engines, the sensor resistance at 30°C is 1.5-2.0 kOhm, and at 80°C, it is 275-375 ohms. If the measured resistance does not match the specified value, replace the sensor.