What should Passat b4 do if the idle speed is too high (1500-2000) after cleaning the accelerator? Please advise!

The car adopts Siemens S4 injection system, which is the same as Hongqi. After washing the throttle, the system is prone to high idle speed. The control principle is complicated, so I won't elaborate here. Let's talk about the solution to the problem.

1, turn on the ignition switch, can you hear the rhythmic click of the throttle? If you can hear it, open the plastic cover of the throttle and press the idle contact by hand. At this time, you can see that the throttle valve is moving greatly. In this way, the throttle setting is completed.

2. If the throttle sounds after turning on the ignition switch. At this time, you can open the throttle cover, loosen the three fixing screws of the circuit board, pry open the positioning piece, rotate the circuit board in the opposite direction, and then match the throttle with the diagnostic instrument. Move a little at a time and do it a few times more, and you can pair successfully.

3, some versions of the computer can lose the computer code, which can also be solved.

The above methods can achieve a success rate of 99%.