What are the reasons for the engine's yellow warning light and weak power?
2 Answers
The reasons for the engine's yellow warning light and weak power are: 1. Sensor failure causing the car's ECU to inaccurately obtain engine data; 2. Carbon buildup in the engine; 3. Insufficient combustion of the air-fuel mixture due to spark plug failure, ignition coil failure, fuel pump failure, or fuel line blockage; 4. Intake valve blockage; 5. Substandard gasoline quality. The methods to address the engine's yellow warning light and weak power are: 1. Reconnect or replace the sensor; 2. Replace the spark plug or ignition coil; 3. Replace the air filter and clean the throttle body and fuel lines; 4. Replace the engine oil or gasoline; 5. Clean the engine carbon deposits.
When the engine's yellow warning light comes on and the power weakens, I think it might be related to several key issues. I've seen many cases where aging spark plugs or ignition coils cause unstable engine ignition and incomplete combustion, leading to power loss. Additionally, fuel system blockages, such as excessive carbon buildup in the fuel injectors, can restrict fuel supply and reduce power. A faulty oxygen sensor can also affect the engine control unit's ability to adjust the air-fuel mixture, making the car feel sluggish. Turbocharger failure can similarly cause this situation. Don't underestimate these minor issues—using diagnostic tools to read trouble codes promptly can save you a lot of money. Delaying repairs might damage the catalytic converter, doubling the repair costs. Regular maintenance, including checking spark plugs and fuel lines, is crucial. Don't wait for problems to arise before taking action.
