Audi a6 throttle failure. What will happen to the car?

Throttle valve failure; Dirty throttle valve and throttle valve or too much carbon deposit in injector, gear start jitter, cold start, insufficient three-way catalytic temperature, and serious carbon deposit in engine are the most common reasons for automobile jitter, because gasoline adsorbed on carbon deposit after landing is sucked into cylinder by engine for combustion, and the combustible mixture of engine is sometimes rare and thick, which leads to idling jitter after cold start. Solution: The company cleans the oil circuit, and checks whether the idle motor has carbon deposit, so it should be cleaned.