What to Do When the Engine Warning Light Comes On in a Levin Hybrid?

[CatherineLynn]

The engine warning light may come on due to the following 7 main reasons: Sensor malfunction: The sensors mentioned here include those for coolant temperature, crankshaft position, air flow, intake air temperature, oxygen, etc. When these sensors are damaged, have poor contact, or their signals are interrupted, the vehicle's ECU cannot accurately obtain engine data, which may trigger the engine warning light. Fuel or oil quality issues: If the fuel or engine oil is not added as required by the manufacturer, it may cause engine wear, leading to the warning light coming on. Poor combustion of the air-fuel mixture: Poor combustion can cause engine carbon buildup or knocking. When detected by the oxygen sensor and reported to the ECU, the warning light will illuminate as a warning. Issues such as spark plug failure, ignition coil failure, fuel pump failure, or clogged fuel lines can all lead to poor combustion of the air-fuel mixture. Turbocharging issues: Problems with the intake boost piping or turbocharger can also cause the engine warning light to come on. The most common issue is turbocharger damage, accompanied by symptoms such as oil leaks, excessive oil consumption, reduced power, metallic noises, or blue/black smoke from the exhaust. Intake issues: If there is a problem with the vehicle's intake, it may lead to clogged engine piping, and in severe cases, trigger the engine warning light. A dirty air filter that is not cleaned regularly can cause intake problems. Exhaust issues: Exhaust system faults can also cause the engine warning light to come on. Common causes include faults in the rear oxygen sensor, catalytic converter, exhaust camshaft, or bearings, with the catalytic converter being the most frequent issue. Using leaded gasoline, lead or silicon-based lubricant additives, physical damage to the catalytic converter, or faults in the engine fuel supply system can easily lead to catalytic converter failure. Anti-theft system malfunction: If the vehicle's electronic anti-theft system malfunctions or if the anti-theft controller does not match the engine electronic controller, the anti-theft system may prevent the engine from operating normally, and the engine warning light will illuminate. If the engine warning light comes on, follow these steps: First, check if the engine is running normally and whether there are any issues such as shaking or smoke. If so, avoid restarting the engine. Note: Do not restart the engine if the red warning light is on. If the engine can be started, turn it off and wait for 5-10 minutes. Without pressing the brake, press the start button once or turn the key halfway to the "on" position without depressing the clutch. The vehicle will enter self-check mode after powering on. Wait for 5-10 seconds and observe whether the warning light on the dashboard turns off. If the warning light remains on, visit a service center as soon as possible to diagnose the issue. The service center can use a portable diagnostic tool to read the fault codes, identify the problem, and perform targeted repairs.