Audi 3.0t Throttle Control Function Failure

The throttle valve is broken. The main problems are as follows:

(1) carbon deposit on the throttle valve, and the throttle valve is not closed tightly.

② Throttle idle channel is blocked. When idling, the air intake is insufficient.

③ The throttle position sensor has poor contact and no full load.

④ The throttle position sensor is in poor contact or the throttle body is damaged, and the throttle position signal is incorrect.

The above two situations can be solved by cleaning the throttle; ④ The two situations need to be solved by replacing the throttle according to the detection of the scan tool.

The influence of throttle failure: the engine idle speed is unstable, the high idle speed continues to drop, and it is difficult to start the engine, especially the cold start; Engine idle speed is unstable or no idle speed; The engine is difficult to start; The engine has insufficient power, poor acceleration performance and unstable operation.