SSANGYONG Rodius 2012.07 Manual page 310

2) Location and Components
HFM sensor
Used as a main map value to control the EGR.
The coolant temperature, engine rpm, engine
load, intake air temperature (HFM: decreased
at 60˚C or more), atmospheric pressure
(atmospheric pressure sensor: altitude
compensation) are used as auxiliary map
values.
E-EGR valve
Receives the electric signal from the ECU to
control the valve.
* For details, see the section "Engine control".
E-EGR cooler and bypass valve
EGR cooler
See the section "Engine control" for E-EGR
valve control logic.
The cooler lowers the high temperature of the
exhaust gas and the bypass valve directly
supplies the exhaust gas to the intake duct
without passing through the EGR cooler to
reduce the emission of exhaust gas before
warming up the engine.
EGR pipe
Transports the exhaust gas from the EGR
cooler and EGR bypass valve to the intake
duct.
13-5
1793-00
EGR bypass