Symptoms of more carbon deposition in throttle valve

If the throttle of the vehicle has a large amount of carbon deposit, the general symptoms of the vehicle are as follows:

First of all, the vehicle does not start well when the cold car starts. The general performance is that sometimes it takes two or three taxis to start normally, or sometimes it needs to add some throttle when starting.

Then if there is a lot of carbon deposit on the accelerator, the vehicle will shake after starting. Or the phenomenon of unstable idle speed.

If the carbon deposition on the accelerator is particularly serious, it will also lead to the acceleration of the vehicle and the inability to stumble when driving.

In this case, it is necessary to clean up the carbon deposits in the throttle valve in time, and then clean up the carbon deposits in the intake port and the three-way catalyst. Some models need a special computer to reset the throttle.