What does the fault code p0507 of Chery Oriental Son mean?

Hello, the fault code P0507 of Oriental Son is universal, which specifically means that the engine speed of the idle air control system is higher than expected.

Cause of occurrence:

The idle air control (IAC) valve has a movable needle valve controlled by a precisely moving stepping motor. When the throttle is closed, IAC valve controls the idle speed by changing the air flow of the bypass pipeline to adapt to the idle speed under different working conditions. This fault code will appear if the ECU detects that the engine idle speed is higher than the set value. The fault causes include air leakage behind the throttle body, IAC control circuit fault, IAC solenoid valve fault, throttle control module fault, electronic control module (PCM or ECM) fault, vehicle speed sensor fault, etc.

In this case, in addition to the throttle electronic control idle channel, we should also pay attention to other factors, that is, whether there are other loose air leaks to increase idle speed?