Page 785 - Foton Workshop Manual - Auman EST-M

Engine section – Engine (Cummins ISF3.8) EG - 269

Atmospheric pressure sensor IN
Overview
1. Barometric pressure sensor is used to collect barometric pressure signals and sense the altitude that DI
the car travels, so that the appropriate parameters can be amended appropriately to adjust the fuel
injection of the vehicle and engine work. EG

2. Barometric pressure forms a semiconductor deformation on the surface of the sheet in the

barometric pressure sensor structure to deform the sheet to produce the piezoelectric impedance effect,
so that the change of impedance is converted into an electrical signal and sent to the ECM of the engine. TR

Change
AX
1. Switch off the ignition switch

2. Disconnect the cable of battery negative pole
FR
3. Flip over the cab to the front

4. Remove the barometric pressure sensor
ST
a. Disconnect the barometric pressure sensor connector.

BR

BW

EL

5. Install barometric pressure sensor

a. Connect the barometric pressure sensor connector.

6. Put the cab back

7. Connect the cable of battery negative pole

EG-269