Changan wrench d5 has a high idle speed.

Excuse me: What is the reason for the high idle speed of Chang 'an d5 jumper? The throttle body contains too much carbon.

Carbon deposition is formed by long-term air intake in the air intake system, because the air will contain impurities such as dust. With more carbon deposition, the opening and closing resistance of throttle valve increases and the air intake of engine decreases. If the air intake is small, it is easy to cause flameout. At this time, ECU will increase the air intake, adjust the throttle opening and improve the engine idle speed.

The solution is to clean the carbon deposit on the throttle with carburetor cleaner, and then match the throttle opening. It should be noted that cleaning agent should not be sprayed into the pin during cleaning to avoid damaging the electronic components inside the throttle body.