Why does the Audi A4 lack power when the accelerator is pressed hard?

[PrestonLee]

Check whether the throttle opening, spark plug electrode gap, and fuel pressure are normal. Introduction to the throttle: The throttle, also known as the "air valve" or "butterfly valve," is a control device that regulates engine power (thrust). In gas turbine engines, the throttle controls the metered fuel flow of the fuel regulator, thereby determining the thrust generated by the engine. Introduction to the Audi brand: The Audi Group includes its parent company and subsidiaries such as Audi Hungaria, quattro GmbH, as well as Lamborghini Automobili and Cosworth Technology. Audi is one of the oldest car manufacturers in Germany. Since 1932, Audi has adopted the four-ring emblem, symbolizing the merger of Audi with DKW, Horch, and Wanderer into Auto Union.