How to Lower High Idle Speed?
1 Answers
High idle speed can be adjusted at professional repair shops or 4S stores. Below is relevant information about high idle speed: 1. Causes: Mainly include damaged intake sensors, excessive vehicle air intake, faulty water temperature sensors (where the vehicle increases idle speed to raise water temperature), and throttle position sensor malfunctions. 2. Hazards: Prolonged idling can easily lead to carbon buildup. Since the car operates in a rich fuel injection state during idling, the injector sprays highly concentrated fuel to ensure engine operation. Therefore, idling itself is more likely to cause carbon buildup compared to driving or highway speeds. Extended idling can result in severe engine carbon deposits.