How to clean the intake pressure sensor

Cleaning the intake pressure sensor requires the following operations:

1. Open the engine cover and you can see the pressure sensor on the left.

2. Remove the buckle and unscrew it with a screwdriver.

3. I found it really dirty after taking it out. In fact, when I used to clean the economizer, I knew there was a lot of oil pollution here.

Pay attention when cleaning here, because that accelerator cleaner will float everywhere. This liquid is very spicy and corrosive, so you should protect your face and eyes.

After cleaning, you can find that a lot of dirt has been cleaned up.

Extended data:

Inspection method of intake pressure sensor:

1, power supply voltage check

Remove the wiring harness plug of the pressure sensor ON the intake manifold, turn the ignition switch to the (ON) position, and then measure the voltage between the power terminals on the wiring harness plug with the voltage range of a multimeter. The value should meet the requirements (refer to the maintenance manual of the vehicle to be repaired for specific values), otherwise replace or repair the electric control wiring harness.

Normal operation of transmission

Static quantity of automobile electrical appliances: sensor detection Regal constant speed patrol chainsaw carburetor active brake of automobile hub can be changed.

2.] Check the output voltage

Remove the vacuum hose connecting the sensor with the intake manifold, so that the sensor is directly communicated with the atmosphere, then turn the ignition switch to the (on) position, measure the output voltage of the sensor at the wiring harness plug of the electronic control unit with a voltmeter, and then vacuum the sensor.

It can measure its output voltage under different vacuum, and the voltage value should decrease with the increase of vacuum density, and its change should meet the technical parameters, otherwise the sensor will be replaced if the driving fault diagnosis is enough.

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