Absolute pressure (vacuum) sensor in the intake manifold (Chevrolet Aveo T300)

Absolute pressure sensor (rarefaction) in the intake pipe is installed on the intake pipe. The sensor records the change in pressure (rarefaction) in the intake pipe depending on the change in load and engine crankshaft speed and converts them into an output signal voltage. Depending on the sensor signal, the ECU calculates the amount of air entering the engine.



You will need: TORX T20 key, flat-blade screwdriver.

1. For easy access to the sensor, remove the fuel pressure pulsation compensator. To do this, reduce the pressure in the fuel system (see "Reducing pressure in the fuel system").

2. Disconnect the wire from the negative terminal of the battery.

3. Remove the fuel pressure pulsation compensator (see "Replacing the fuel pressure pulsation compensator").



4. Press the lock and disconnect the wiring harness connector from the sensor.





5. Remove the sensor mounting screw.



6. Carefully, slightly rocking, pull the sensor body upwards and remove the sensor, overcoming the resistance of the rubber sealing ring (the sensor nipple is installed with tension in the hole of the intake pipe).



7. Install the sensor in the reverse order of removal.