Why is the engine yellow light flashing on the car dashboard?
2 Answers
Reasons for the engine yellow light flashing on the car dashboard: 1. Carbon deposits in the intake tract and piston top causing poor atomization, leading to incomplete combustion; 2. During cold starts, especially when the temperature drops sharply, the pollution light may illuminate due to the ECU's temperature correction, but it will stabilize once the temperature drops to a certain level without fluctuations; 3. Excessive engine mileage weakening the spark plug's performance characteristics; 4. Excessive carbon deposits and ignition difficulties causing reverse breakdown of the ignition coil, leading to ignition coil failure and poor ignition resulting in incomplete combustion; 5. Advanced vehicle age and mechanical wear causing poor engine conditions, leading to suboptimal combustion and ignition.
When I saw the engine yellow light flashing on the dashboard, my first reaction was not to panic because it's quite common. It could be that the computer system detected unstable engine operation, such as a cylinder misfire, meaning the ignition failed, often caused by worn spark plugs or poor fuel flow. It might also be due to poor fuel quality or a loose fuel cap. Misfires can lead to unburned fuel entering the exhaust pipe, damaging the catalytic converter, which could cost thousands of dollars. For safety, I immediately pulled over, turned off the engine, and waited a few minutes before restarting. If the light continues to flash, I'll take it to a repair shop to read the fault codes for diagnosis. Regular maintenance like using quality gasoline and periodic spark plug checks can prevent such issues.
