How many three-way catalytic converters does the Chery QQ3 have?

[SanVera]

The Chery QQ3 has two three-way catalytic converters on its exhaust pipe, namely the pre-catalytic converter and the main pre-catalytic converter. Definition of a three-way catalytic converter: A three-way catalytic converter is the most important external purification device installed in a vehicle's exhaust system. It converts harmful gases such as CO, HC, and NOx emitted from vehicle exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. Cleaning of the three-way catalytic converter: The cleaning method for a three-way catalytic converter is the 'drip bottle' method. This involves connecting a plastic hose to the engine's vacuum solenoid valve and using the air pressure in the hollow tube to draw the cleaning agent from the drip bottle into the engine. The cleaning agent then exits through the exhaust pipe, cleaning the three-way catalytic converter in the process. Lifespan of the three-way catalytic converter: The lifespan of a three-way catalytic converter is generally between 80,000 to 100,000 kilometers. The exact lifespan depends on the vehicle's usage conditions, as well as the quality of the fuel used and the driving environment.