SSANGYONG Korando 2012 Manual page 329

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(7) Wide band oxygen sensor

For diesel engine, combustion is not performed at the optimum (theoretically correct) air-fuel ratio

and the oxygen concentration is thin in most cases. So the wide-band oxygen sensor is used for

this kind of engine, and this sensor is a little different from the one that used for gasoline engine.

The combustion in diesel engine is controlled by fuel injection volume. Therefore, the wide band

oxygen sensor should be used in diesel engine. This sensor measures the air-fuel ratio in very

wide range, and is also called full range oxygen sensor.

The wide band oxygen sensor measures the oxygen density in exhaust gas and sends it to

ECU to control the EGR more precisely.

b. Components

Electronic throttle

Injector (C3I)

Coolant temp.

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