What is the reason for the engine yellow light on and the air conditioner not cooling?
1 Answers
Engine yellow light on and air conditioner not cooling reasons are as follows: Fuel supply system problems: The fuel supply system mainly includes the fuel tank, fuel pump, pipelines, fuel filter, carbon canister, carbon canister solenoid valve, fuel pressure regulator, fuel injectors, etc. Poor fuel quality: Fuel quality is the primary factor causing the engine warning light to illuminate. The anti-knock performance of gasoline is represented by the octane number. The higher the octane number, the better the anti-knock performance. For example, 97-octane gasoline has an octane number not less than 97. Leaded gasoline can cause lead poisoning of the oxygen sensor, thus poor fuel quality is the main reason for insufficient engine combustion, leading to the engine warning light turning on. Abnormal fuel pressure: If the fuel pump's supply pressure does not reach a certain level, it will result in poor atomization of the fuel injectors, thereby affecting the normal operation of the engine. Poor combustion state: Poor engine combustion state is the main reason for the engine warning light to illuminate. In automotive design, to ensure the engine is in good working condition and to guarantee the normal working lifespan of the engine, oxygen sensors are installed to monitor the engine's combustion state. Once the engine's combustion state is poor, it not only pollutes the environment but also causes fuel waste and excessive engine wear.
