1)   LNG is the abbreviation of Liquefied Natural Gas, LNG Oxygen Sensor is a kind of Universal Exhaust Oxygen Sensor(UEGO).

2)  Location: one is located behind the exhaust manifold, it’s called the front Oxygen Sensor;

           The other is behind the three-way catalytic converter, it’s the rear Oxygen Sensor.

3)     Working principle:

By detecting the oxygen concentration in the engine exhaust gas, a corresponding voltage signal is sent to the ECU which will adjust the injection pulse width accordingly.

4)     Function:

Reduce fuel consumption and emission pollution.