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2321-01
ENGINE INTAKE SYSTEM
VGT Turbocharger
OVERVIEW AND OPERATION PROCESS
1. INTAKE SYSTEM LAYOUT
1) Work Flow of Intake System
HFM Sensor
The HFM sensor is installed in the air intake
passage between the air cleaner and the intake
manifold. It measures the air volume supplied to
the combustion chamber and the ai
r
temperature.
Major Functions
It controls the EGR feedback.
It controls the pressure control valve for the
turbocharger booster. -
-
1. Plug-in sensor
2. Cylinder housing
3. Protection grid
4. Hybrid cover
5. Measuring duct cover
6. Housing
7. Hybrid
8. Sensor
9. Mounting plate
10. O-ring
11. Temperature sensor
Turbocharger
actuator
Intake
(air cleaner)
Com
pressed air
(intercooler)
Exhaust gasExhaust pipe
(diesel catalytic
converter)
Plug-in
sensor
Temperature
sensorProtection grid
Front Air Duct Air Cleaner
