How does a failing catalytic converter affect Honda City’s fuel consumption?

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How does a failing catalytic converter affect Honda City’s fuel consumption?

Can a clogged converter lead to increased fuel usage and lower mileage on long routes and city driving?

Sirat Ul Jinan asked on 27 Feb 2025 12:18:40 pm

1 Answer

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Car Mechanic Expert - on 27 Feb 2025 12:36:23 pm

Increased fuel usage: A clogged converter creates backpressure, forcing the engine to work harder, which leads to an increase in fuel consumption. This results in reduced mileage, both in city traffic and on long routes.
Lower efficiency: The engine will become less efficient at burning fuel, which could further reduce overall fuel economy.