What is the reason for the high idle speed of Alto Happy Prince?

The high idle speed of EFI vehicle is caused by air leakage in air intake system and failure of EFI control system. Check. Two steps. 1 Block the door of solar terms with your palm. There will be two situations. 1( 1) Engine flameout. (2) The engine does not stall. If the engine is turned off, the air leakage is inside the throttle. If the engine is not turned off, the air leakage outside the air intake system needs further inspection. Now let's talk about the problem of throttle leakage in detail. Block the idle side exhaust hole on the throttle with your finger, which means that it is a control problem of the idle motor system. If it is not closed, it means that there is a gap in the throttle. The throttle valve replica has a gap that can be sealed as glue. (How to make a rubber seal? If there is a problem with the idle motor control system, you can use the oil-saving idle motor to solve the problem.