Land Rover found that the idle speed of 4 was too high, and the hot car reached 2000 rpm. What is the reason? Four years later, the car traveled 80,000 kilometers.

The high idle speed of EFI engine is generally where there is air leakage. 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.