Can a Clogged Catalytic Converter Affect Fuel Economy in a Toyota Hilux?

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Can a Clogged Catalytic Converter Affect Fuel Economy in a Toyota Hilux?

A clogged converter can cause reduced fuel efficiency and sluggish acceleration. Have you noticed a in mileage due to catalytic converter issues?

Lubaba asked on 11 Feb 2025 16:28:17 pm

1 Answer

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Car Mechanic Expert - on 11 Feb 2025 16:31:32 pm

Yes! A clogged CAT can significantly reduce fuel efficiency because:

🔸 The engine burns more fuel to compensate for reduced exhaust flow.
🔸 The oxygen sensors misread fuel-air mixture, leading to excess fuel usage.
🔸 Increased engine load results in higher fuel consumption.

📌 Solution: If you notice worsening mileage and sluggish performance, inspect and clean/replace the CAT.