Auto Parts1999-2002 Subaru 2.2L/2.5L H4 Engine parts

The three-way catalytic converter is the most important external purification device installed in the automobile exhaust system. It can convert harmful gases such as CO, HC and NOx emitted by the automobile exhaust into harmless carbon dioxide, water and NOx through oxidation and reduction. Nitrogen. Because this catalytic converter can simultaneously convert the main harmful substances in the exhaust gas into harmless substances. As environmental protection requirements become increasingly stringent, more and more cars are equipped with exhaust gas catalytic converters and oxygen sensor devices. It is installed in the engine exhaust pipe and converts carbon dioxide and nitrogen through an oxidation-reduction reaction, so it is also called a three-way (effective) catalytic converter.