道奇旅行氧气传感器更换在您的家庭或办公室。

什么是氧气传感器？

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor.

后（下游）传感器位于催化转化器后面。后氧气传感器的目的是监测离开催化转化器的废气的氧含量。

如果一个或多个氧气传感器有故障，则您的汽车可能不会通过排放测试。如果您使用故障的氧气传感器驾驶汽车，则可能会获得较差的汽油行驶里程，并且会损坏催化转化器。