What are the disadvantages of aftermarket catalytic converters?
1 Answers
The disadvantages of aftermarket catalytic converters include: The performance of aftermarket catalytic converters may not be as effective as the original ones, leading to non-compliant exhaust emissions; Unlike original catalytic converters produced by the car manufacturer, aftermarket ones may lack relevant certifications or quality assurances; The quality of aftermarket catalytic converters varies greatly, often resulting in a shorter lifespan. More details are as follows: 1. The operating temperature of a catalytic converter typically should not exceed 800°C: However, if the engine's cylinder combustion is poor (a common occurrence, such as with faulty spark plugs or high-voltage lines), the exhaust will contain excessive unburned fuel gases. These gases can combust inside the exhaust manifold, causing the catalytic converter to fail or be damaged due to excessively high temperatures. 2. The hazards of tetraethyl lead: Tetraethyl lead in leaded gasoline not only causes significant pollution and harm to the environment and human health but also deposits on the active surfaces of the oxygen sensor and catalytic converter within the catalytic converter. This leads to 'lead poisoning' of the oxygen sensor and greatly reduces the purification efficiency of the catalytic converter, eventually causing damage. Therefore, the quality of gasoline has a significant impact on the performance of the catalytic converter.
