307 Clean the throttle valve

There are several possibilities: 1, the throttle is dirty and needs cleaning. This article has been excluded. 2. Incorrect installation position of pulley or tensioner or position deviation caused by long-term use. 3. Incorrect ignition time or aging spark plug leads to a decrease in output power, which leads to jitter. 4. Idle switch or idle valve is not working normally (this problem is often undetectable by computer). 5. The bearing of air conditioner compressor is damaged or locked. 6. The problem with other sensors is most likely Article 4. I hope I can help you.