What are the effects of a clogged three-way catalytic converter?

1 Answers
SiennaFitz
07/29/25 11:36pm
The impacts of a clogged three-way catalytic converter include the following aspects: 1. The rear oxygen sensor sends a signal, causing the engine fuel injector to spray more fuel, and the engine alarm signals oxygen sensor poisoning. This is generally caused by poor gasoline quality, incomplete combustion at low gears and speeds, severe engine carbon buildup, or after carbon cleaning, revving the engine to expel carbon deposits onto the three-way catalytic converter, all of which can lead to clogging. In severe cases, the exhaust may emit a foul odor. 2. There may be a slight decrease in power and increased fuel consumption. During vehicle inspections, the exhaust may fail to meet standards. You can use a lift to remove, clean, and soak the converter. Generally, there are professional cleaning agents available, or even toilet cleaner or oxalic acid can be used. It's also advisable to clean the rear oxygen sensor at the same time. For minor cases, driving at high speeds can help. 3. If you're not driving fast, it can still help to increase the engine speed. (Generally, for manual transmission vehicles, shift gears above 2000 RPM to avoid prolonged idling and use high-quality fuel.) This can help remove some of the clogged parts. Remember not to strike it, as the interior is made of ceramic material.
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