SSANGYONG Korando 2012 Manual page 294

3. INPUT/OUTPUT DEVICES
1. Front temperature sensor: This sensor is installed at the inlet of DOC and detects whether the
DOC can burn (oxidize) the post-injected fuel or not.
2. Rear temperature sensor: This sensor is installed at the inlet of DPF and monitors that the
temperature of the exhaust gas is kept at 600℃.
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If the temperature exceeds 600℃, the life of CDPF can be reduced. So the amount of fuel
post-injection is decreased.
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If the temperature drops under 600℃, the rate of regeneration can be decreased. So the
amount of fuel post-injection is increased.
3.
Differential pressure sensor: This sensor checks the amount of PM collected by calculating the
pressure difference between before and after the CDPF.
4. Electric throttle valve: This valve reduces the intake air flow to raise the temperature of the
exhaust gas when the CDPF is operating during idling.
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