What causes the engine yellow light to appear on the dashboard?

[KendraRose]

The reasons for the engine yellow light appearing on the dashboard: 1. Sensor issues, including water temperature, crankshaft position, air flow, intake temperature, and oxygen sensors. When these sensors are damaged, have poor contact, or experience signal interruption, the car's ECU cannot accurately obtain engine data. 2. Use of substandard fuel quality. 3. Carbon deposits generated from prolonged engine operation. An engine is a machine capable of converting other forms of energy into mechanical energy, with types including internal combustion engines, external combustion engines, and electric motors. The engine block forms the skeleton of the engine, serving as the installation base for various mechanisms and systems, and houses the main components and accessories of the engine, bearing various loads. The engine block assembly mainly consists of the cylinder block, cylinder liner, cylinder head, and cylinder gasket.