The last time I do maintenance 4S shop I want to clean the intake system, I did not wash, do not know what circumstances must be washed?
Throttle 6000-10000 km cleaning, fuel injectors every 40,000 km cleaning, inlet 40000-60000 km cleaning can be. Do not have old cleaning.
Intake system to see what kind of, and now the car system running about 5,000 km to clean, so the engine is good.
If the vehicle is working in a relatively contaminated environment (mainly refers to respirable particulate matter), there will soon be accumulated impurities on the throttle valve, which will affect the intake of the engine, which will require cleaning. This is most noticeable when starting the vehicle.
As for how long to wash once, decided by many aspects. Such as the driving environment of the vehicle, the control mode of the EFI engine
