What are the reasons for the car engine warning light staying on?
2 Answers
The reasons for the car engine warning light staying on are: 1. Poor gasoline quality leading to incomplete combustion of the air-fuel mixture in the cylinders, resulting in carbon deposits; 2. Excessive engine mileage causing weakened spark plug performance; 3. Mechanical aging of the vehicle; 4. Damage, poor contact, or signal interruption of components such as water temperature sensor, crankshaft position sensor, air flow sensor, intake air temperature sensor, and oxygen sensor. The solutions for a continuously illuminated engine warning light are: 1. Promptly inspect the engine condition; 2. Check the status of sensors including air flow sensor and spark plugs; 3. Examine the vehicle for knocking conditions; 4. Inspect the ignition coils for faults; 5. Severe engine carbon buildup.
The engine warning light on my small car keeps staying on, which really freaks me out. There are quite a few common causes, such as sensor malfunctions. Faulty oxygen sensors or air-fuel ratio sensors can make the computer report false errors. Exhaust system issues are another possibility - if the catalytic converter gets clogged or cracked, it can't properly process exhaust gases. Problems in the ignition system, like worn spark plugs or aging ignition coils, might also trigger the light. The fuel system matters too - clogged fuel injectors or a weak fuel pump could be the culprit. I've even encountered situations with vacuum hose leaks. If these issues aren't fixed, fuel consumption will skyrocket, engine performance will decline, and you might even break down on the road. Safety first - it's best to quickly use an OBD diagnostic tool to read the trouble codes, or take it directly to a professional repair shop for inspection. Regular maintenance like changing the engine oil and cleaning the air filter can help reduce risks.
