Engine lights affect the annual review.

This will affect the annual inspection, the throttle will get dirty and the idle speed will be too low. Clean the throttle valve in time for common faults; Idle motor or throttle position sensor is faulty. Replace throttle position sensor or idle motor. Idling motor is mainly caused by excessive carbon deposition, which can be cleaned, but it can only be replaced if the carbon deposition is serious; If the engine lighting affects the annual review, the reasons for the lighting are as follows: 1. After the engine is started, there are three reasons for the vehicle's jitter and lack of power. -First, the engine's mixture burns badly, but when the mixture in the cylinder is too rich, the vehicle will have symptoms such as knocking, trembling and vibration. When the mixture is too lean, the vehicle will not be able to accelerate; 2. If it is not mixed gas, it is that the working conditions of spark plug, high-voltage conductor and ignition coil are faulty, the ignition system is not working well, and the ignition of spark plug is not good, which will also affect engine faults, such as light on, car shaking and insufficient vibration force; 3. The third reason is that the oil supply pressure is abnormal and the intake pressure sensor is faulty. If the oil supply pressure of the oil pump is abnormal or the intake pressure sensor is incorrect and works abnormally, it will basically lead to the body trembling and insufficient power.