Under what conditions is fast idle used for the engine?
1 Answers
Fast idle, also known as high idle, refers to an idle speed that is higher than the normal idle speed. It is used during cold starts to help the engine quickly reach its optimal and most economical working environment, increasing the engine's idle speed and accelerating warm-up. Here is a related introduction: Idle speed: For an engine with good performance, the idle speed is generally between 650-800 RPM. Fast idle is typically around 1000 RPM. Fast idle: Fast idle refers to the higher engine speed compared to normal idle when starting a cold engine to help it reach operating temperature more quickly. Simply put, it is an engine speed higher than the normal idle speed. The control conditions mainly involve sensors such as the intake air temperature sensor or coolant temperature sensor.