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What are the reasons for the engine fault light to come on after refueling?

1 Answers

GrahamDella

07/30/25 5:27am

The reasons for the engine fault light to come on after refueling are: 1. Faulty spark plugs, ignition coils, fuel pump, or clogged fuel lines in the engine; 2. Poor contact in the water temperature, crankshaft position, air flow, intake temperature, or oxygen sensors; 3. Poor quality engine oil leading to engine wear; 4. Excessive carbon buildup causing changes in the engine's design parameters; 5. Incorrect fuel type or poor fuel quality. The maintenance methods for the engine are: 1. Use qualified engine oil; 2. Use qualified coolant and antifreeze; 3. Regularly clean the radiator scale; 4. Regularly remove engine carbon deposits; 5. Regularly replace the car's three filters; 6. Maintain a reasonable engine speed.

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