What happened to the unstable idle speed of Emgrand ec7-rv cooler?

As for the problem of unstable idle speed of your cold car, the main fault reason is the increase of carbon deposition in throttle valve, air intake, air intake valve and combustion chamber. When the car is cold, it will absorb some gasoline, which will lead to the mixture being too thin when the engine is idling, which will lead to unstable idling. At the same time, check whether the spark plug, ignition coil and cylinder line are out of cylinder, and remind the carbon canister whether there is a fault. This problem is not too big, but you must check the carbon deposit on the throttle and engine regularly. If you have time, it's best to run high-speed regularly, which can also alleviate the formation of carbon deposits. I hope my answer is helpful to you.

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