What causes the engine yellow light to illuminate on the dashboard?
1 Answers
The reasons for the engine yellow light illuminating on the dashboard: 1. Poor engine combustion state, such as issues with the engine's spark plugs, ignition coils, fuel pump, or fuel line blockages, leading to poor combustion of the air-fuel mixture; 2. Intake problems, where the car's air filter affects the air intake, and prolonged use can lead to blockages, which may cause the engine warning light to illuminate; 3. Fuel quality issues, including engine oil and fuel, such as poor fuel quality, unclean engine cylinder interiors, or accumulated carbon deposits; 4. Sensor problems, including damaged or poor contact with sensors like the water temperature sensor, crankshaft position sensor, air flow sensor, intake temperature sensor, or oxygen sensor, which can cause the engine light to illuminate; 5. Improper maintenance combined with poor driving habits can increase the burden on the engine's operation, causing the yellow light to illuminate.