Can Volkswagen Jetta electronic throttle adjust idle speed?

The idle speed of the throttle of Friend's electric system is set by the manufacturer and cannot be adjusted by itself. If the idle speed is low or high, it is generally caused by dirty throttle. The solution to the problem is to clean the throttle and then initialize the throttle with the maintenance tester. If the problem cannot be solved and the throttle position sensor is broken, then the problem can only be solved by replacing the throttle assembly. Please use my judgment to eliminate or replace them one by one. If you have any questions, you can continue to add them. The team of automobile masters will serve you wholeheartedly! If there is something wrong with the car, ask the car master. 4S shop professional technician, 10 minutes to solve.