What is the purpose of cleaning the three-way catalytic converter in a vehicle?

[OJoel]

Cleaning the three-way catalytic converter not only helps improve the performance of the vehicle's engine but also reduces frequent alarms from the exhaust system's oxygen sensor. The cleaning cycle for the three-way catalytic converter: 1. Generally, it should be cleaned every 30,000 kilometers driven. 2. When you notice increased fuel consumption or a drop in power, the three-way catalytic converter should be inspected and cleaned as needed. 3. Every time the vehicle undergoes maintenance for cleaning the fuel injectors, throttle body, and intake tract, the three-way catalytic converter should also be cleaned. 4. It is advisable to clean the three-way catalytic converter before the annual exhaust emission test to ensure the vehicle passes the inspection.