What Causes the Engine Fault Indicator to Illuminate on the Car Dashboard?

[LeHope]

Reasons why the car dashboard displays an engine fault: 1. Lack of regular maintenance—approximately 50% of engine faults are caused by poor maintenance; 2. Degraded engine oil; 3. Clogged air filter; 4. Dirty intake pipes, leading to reduced charging efficiency, which prevents the engine from operating within the normal power range and accelerates wear and aging; 5. Excessive sludge in the crankcase—small amounts can remain suspended in the oil, but large quantities may separate, clogging filters and oil passages, making lubrication difficult and worsening engine wear; 6. Gum deposits and carbon buildup in the fuel system; 7. Rust and scale in the radiator.