SSANGYONG Korando 2012 Manual page 322

15-24
(5) EGR control
a. Overview
The EGR (Electric-Exhaust Gas Recirculation) valve reduces the NOx emission level by
recirculating some of the exhaust gas to the intake system.
The major difference with the previous EURO 4 type, is that the DC motor with improved response
rate according to the EURO 5 regulation. The solenoid type actuator is used in the conventional
model, but in this new model, the DC motor type actuator with improved response rate is
adopted. Also the hall sensor which provides a more stabilized signal than the potentiometer, and
the EGR bypass flap which improves engine warming up efficiency are also used. The HFM
sensor and the position sensor are used to feedback the amount of EGR for both EURO 4 and
EURO 5.
b. Components
E-EGR cooler
Oxygen sensor
Electronic throttle
T-MAP sensor
body
Accelerator peda
Crankshaft posi.
E-EGR valve
Coolant
temp.sensor
D20DTF ECU
HFM sensor
sensor (intake air temp.)