Volkswagen LaVida 14 1.6 Auto-running idle speed is too high to wash the throttle. What's the matter?

This situation may be caused by low engine temperature or damage to the throttle idle control valve.

1. Throttle fault, too dirty throttle will lead to wrong throttle opening, lower throttle sensitivity, and may not be closed properly during idling, resulting in abnormal idling. In addition, the throttle failure will also affect the engine's power, acceleration performance and fuel consumption, and even lead to difficulties in starting in serious cases.

2. If the idle speed control valve fails, the idle speed cannot be adjusted correctly, which will cause problems such as unstable idle speed and difficult cold start. In severe cases, there will be no idle speed, and the engine will turn off when the throttle is released.

3, sensor failure, sensor failure, will make the computer judge wrong, or the computer itself fails, the engine idle speed will be abnormal.