What should I do if the trouble light of Elysee engine lights up and the throttle rings?

As for the problem that the engine fault light is on, I can only help you analyze the cause of this fault because I have never seen the existing car. The main reason why the engine fault light is on is that the throttle valve or the engine has too much carbon deposit, and the mixture ratio is out of balance after the oxygen sensor fails, which is easy to make the engine fault light on. If you drive at a low speed in the urban area for a long time, this phenomenon is easy to appear. It may be that the insulation layer of high-voltage line is easy to break down after aging, which leads to the engine fault light. Because the self-diagnosis system of the control unit generally does not prompt the fault code of the high-voltage line, it is difficult to find similar problems when they occur, so it is necessary to use the special diagnosis computer of the special vehicle to cooperate with experienced maintenance personnel to conduct a comprehensive inspection. As for the abnormal sound after the throttle is removed, it may be caused by the installation problem or improper installation of the throttle. I hope my answer is helpful to you.