How does a damaged catalytic converter affect fuel economy in my Suzuki Alto?

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How does a damaged catalytic converter affect fuel economy in my Suzuki Alto?

Lately, I’ve been noticing that my Suzuki Alto is consuming more fuel than usual. Could a damaged o r failing catalytic converter be the reason for this in fuel efficiency? What are the symptoms of a faulty catalytic converter affecting fuel economy?

Gari Specialist asked on 19 Feb 2025 16:43:11 pm

1 Answer

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Gari Master - on 19 Feb 2025 16:46:07 pm

A damaged catalytic converter can indeed cause a in fuel economy. The catalytic converter is part of the exhaust system, and its job is to reduce harmful emissions. When it malfunctions o r becomes clogged, it can cause the engine to work harder, which decreases fuel efficiency.

Impact on Fuel Economy:

Increased Engine Load: A clogged o r damaged catalytic converter increases backpressure on the engine, which makes it work harder to expel exhaust gases. This requires more fuel to maintain the same performance, thus reducing fuel economy.
Incomplete Combustion: If the converter is not working efficiently, it might not properly process exhaust gases, leading to incomplete combustion, which can further reduce fuel efficiency.
Solution:

Replace the Catalytic Converter: If the converter is damaged o r clogged, replacing it will restore the engine’s normal performance and improve fuel efficiency.
Check for Underlying Issues: Ensure that no other components, such as the fuel injectors o r air-fuel mixture, are contributing to poor fuel economy, as they could worsen the effects of a damaged catalytic converter.