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The DigiPlus fair valueyellow light of the engine is always on, how to solve it? The owner may encounter the situation that the engine yellow light is always on when driving. In this case, there is usually some problem with the engine of the vehicle, which needs to be dealt with in time. So how to solve the problem that the engine's yellow light is always on?This article will provide you with specific solutions. I. Understand the reason why the engine yellow light is always on. First of all, we need to know the reason why the engine yellow light is always on. The yellow light of the engine is often on because there are some problems with the engine, which will be detected by the computer system of the vehicle and displayed on the dashboard of the vehicle. Generally, these problems can be divided into the following categories: 1. Engine sensor failure: The engine sensor of the vehicle is used to monitor the operating parameters of the engine. If these sensors fail, it will lead to engine failure. Two. Engine mechanical problems: This includes the cylinder block, cylinder, piston, crankshaft, etc. of the engine. If these parts are abnormal, the engine yellow light will always be on. 3. Electrical problems: If there is a problem with the vehicle's circuit, such as batteries, generators, spark plugs, etc., it may also cause the engine to be always on the yellow light.II. How to deal with the constant yellow light of the engine 1. Parking check: When the engine yellow light is always on, you need to stop the vehicle in time to check whether the engine of the vehicle is normal. This requires stopping the vehicle in a safe place and checking for smoke, abnormal noise, oil leakage, shiver and other abnormalities. If there is no abnormality, it is better to use an on-board diagnostic instrument to check the fault code of the vehicle. Two. Replacement parts: Once the cause of the engine failure is determined, the corresponding parts need to be replaced. For example, if the engine sensor fails, the relevant sensor needs to be replaced. If it is a circuit problem, you need to check the power line and replace the problematic circuit parts. 3. Change the oil: If the engine yellow light is always on due to engine mechanical problems, it is necessary to change the oil. Because engine mechanical problems are likely to be caused by oil failure, replacing new oil is one of the important solutions.Four. Check the idling control system: The idling control system is a system used to detect the idling speed of the engine, which is likely to fail. If the engine yellow light is always on, you need to check the relevant idling control components, such as idling air conditioning complex, throttle opening sensor, etc. 5. Replace the spark plug: If the yellow light of the engine is always on due to the ignition system, replacing the spark plug is an effective solution. When replacing the spark plug, you should choose the appropriate spark plug model according to the manufacturer's advice, and pay attention to eliminating other faults of the ignition system, such as the ignition coil, ignition control unit, etc. III. Preventive measures Prevention is more important than treatment. The following are the measures to prevent faults: 1. Regular maintenance: Regular maintenance can reduce the possibility of vehicle failure. Regular oil change, brake pad replacement and tire replacement are important measures to reduce vehicle failures.Two. Check the battery: The battery is the foundation of the vehicle circuit. If the battery is abnormal, it will cause many circuit problems. Therefore, the owner of the car should regularly check the battery and replace the defective battery. 3. Avoid sudden braking: Rapid braking is a behavior that can easily cause vehicle failure. Therefore, try to avoid sudden braking to avoid unnecessary damage to the vehicle. In a word, when the engine yellow light is always on, the owner needs to deal with it in time. If it is handled improperly, it may lead to more serious problems. When dealing with it, corresponding solutions should be taken according to the specific situation, and some preventive measures should be taken to avoid vehicle failure.

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