A signal that the throttle is broken, a signal that the throttle needs to be replaced.

For throttle cleaning, I believe many car owners and friends are very familiar with it. Basically, it is highly recommended to do throttle cleaning every time you go to a 4s shop. Have you ever had a broken throttle? What symptom is the accelerator broken? Signs of throttle damage: 1. Engine idle speed is unstable, high idle speed does not drop, and it is difficult to start the engine, especially cold start; 2. The engine is unstable or not idling; 3. The engine is difficult to start; 4. The engine has insufficient power, poor acceleration performance and unstable operation. 5. The exhaust pipe of the car emits black smoke, which increases fuel consumption. These symptoms are all possible symptoms when the throttle is broken, so how to judge that the throttle is broken? The most accurate method is to check the throttle with a scan tool and observe the data flow. If the throttle opening is large, it must be cleaned. If it is determined that the throttle fault is permanent, it must be replaced. Under normal circumstances, the throttle cannot be disassembled for maintenance, only the assembly can be replaced. Generally speaking, there is little need to replace the throttle, and most of them need to be cleaned only when the throttle is dirty. Generally speaking, the throttle should be cleaned every 20,000-40,000 kilometers. If the environment in your car is not good, the cleaning interval should be shortened. It is worth mentioning that maintenance is a good thing, but excessive maintenance will also bring irreversible harm to your car. Excessive cleaning of the throttle will lead to premature scrapping of the throttle. Repeated and frequent cleaning will gradually remove the special coating in the throttle valve cavity. If the inner cavity loses its coating, it is more likely to cause greasy adhesion and form a vicious circle, and the final result is scrapping.