Where is the three-way catalytic converter installed?

[Elliott]

The three-way catalytic converter is located at the front end of the engine exhaust pipe, between the front and rear oxygen sensors. Here is relevant information: 1. 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 automobile exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction. 2. When the three-way catalytic converter begins to clog, it will affect the normal operation of the oxygen sensor, making it impossible to precisely control fuel injection, intake, and ignition, thereby increasing fuel consumption. When high-pressure exhaust is required, clogging will lead to poor exhaust, which will affect the intake volume, resulting in decreased engine power and weak fuel supply.