What does the faucet light displayed on the car mean?

[VivienneFitz]

The faucet light displayed on the car is the engine status indicator light. This indicator light is used to display the working condition of the vehicle's engine. When starting the vehicle, the light will illuminate during the self-check and then automatically turn off. If the light remains on, it indicates issues such as poor engine combustion, engine knocking, poor fuel quality, or internal engine cylinder contamination. The engine fault light is controlled by the engine computer, which essentially manages all electrical components of the engine. Therefore, any faults will be displayed through the engine fault light. There are many reasons why the engine fault light may illuminate, including issues with the purge solenoid valve controlling fuel vapor emissions, air flow meter failure, ignition coil failure, thermostat failure, catalytic converter failure, oxygen sensor failure, excessive carbon buildup in the electronic throttle, etc.