2005 Elantra High Idle Speed

In general, the idle speed of a car is usually 700-800 rpm. If it is too low, the engine will shake easily, and if it is too high, the fuel consumption will be high. As long as it doesn't shake, the design engineer wants to be as low as possible to save fuel. (1) If the idle speed is too high, it is usually a throttle fault. If the throttle valve is too dirty, it will lead to an error in the opening of the throttle valve, which will reduce the sensitivity of the throttle valve and may not be closed normally at idle speed, resulting in.