How often does Buick Regal change the throttle?

Buick Regal changes the throttle every three to forty thousand kilometers. Throttle is a controllable valve, which is used to control the air entering the engine. Dirty throttle will lead to vehicle idling jitter, insufficient driving power, increased vehicle consumption, flameout and emission failure. Take Regal 202 1 552T Elite as an example. Its body structure is a four-door five-seater car. The body dimensions are: length 4904mm, width 1863mm, height 146 1mm and wheelbase 2829mm respectively. Regal 202 1 552T is equipped with 1.5T turbocharged engine, with maximum horsepower 169ps, maximum torque of 250nm and maximum power 124kw, matching with a 9-speed automatic manual transmission. Million car purchase subsidy