How often does the throttle need to be cleaned and replaced?

1, the throttle of the car needs to be cleaned every 15000 km. The engine will produce carbon deposit when it is running, and many parts need to be cleaned in time. In addition to the throttle, there are idle valve, air intake, fuel injector, combustion chamber, oil circuit and three-way catalytic converter, all of which need to be cleaned regularly.

2. Now all cars use EFI engine, among which throttle is the most important accessory in EFI engine system.