What does the engine icon on the car dashboard mean?

[VonHector]

When the engine icon appears on the car dashboard, it indicates an engine malfunction. Possible causes include: the need to replace the air flow sensor or oxygen sensor, spark plugs or ignition coils, or unclean engine cylinders with carbon deposits leading to engine knocking, poor combustion state, or poor fuel quality. The specific cause needs to be diagnosed by reading the fault code with specialized equipment at an after-sales service center. There are several ways the engine warning light may illuminate: steady yellow light, flashing yellow light, steady red light, or flashing red light. If the red light is on, immediately go to a 4S shop for inspection and repair as the fault is severe. If the yellow light is on, the fault may not affect driving, but it is still advisable to get it checked as soon as possible.