Audi A4 has driven 6700 kilometers, and the acceleration is weak. The nozzle throttle has also been cleaned and the spark plug has been replaced. The problem remains unresolved.

After cleaning the nozzle throttle, it will definitely match and eliminate the possibility of various faults. If you can't start at high speed, you can change the spark plug or adjust the gap. Baidu search spark plug home online customer service is that I'd better take a picture of the spark plug and show it to me.