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What Causes High Fuel Consumption in the Sylphy?

1 Answers
LaArthur
07/29/25 8:59am

Regarding the reasons for high fuel consumption in the Sylphy, the following factors may be involved: Engine carbon deposits: A significant buildup of carbon deposits in the engine over a short period can lead to higher fuel consumption. Solution: Add a certain amount of fuel cleaner when refueling. If there is excessive carbon buildup in the engine, it is necessary to visit a 4S shop or repair shop to clean the carbon deposits inside the engine. Oxygen sensor failure: The oxygen sensor primarily monitors the air-fuel ratio in the engine. If it is damaged, it can cause an imbalance in the air-fuel ratio, inevitably leading to abnormally high fuel consumption. After the oxygen sensor fails, the vehicle will emit darker exhaust gases from the tailpipe while driving. Solution: Replace the oxygen sensor promptly.

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