The fact is that the throttle valves are really cleaned, there is no cheating here. But the operation itself has many caveats: the device is extremely sensitive and must be maintained extremely carefully, using a special fluid. “Chemistry” doesn’t work? When we arrived we went straight to the shot. No brushes, sponges, cotton wool or even emery cloth should be used. There should be no gap between the body and the “nickel”, and any scratch provides additional air supply – read, change the “recipe” of the fuel mixture.
Moreover, soot often blocks precisely this inflow. Take it away and the system is ruined. A slightly dirty throttle body can indeed be washed, but if you try this on a five or six year old car in which this unit has never been removed, you may want to go straight to the auto parts store. Moreover, on foot.
In the accelerator pedal, a strong build-up of carbon deposits is a reason for replacement. There’s no point in cleaning it because after that it’s just a shot. And redecorating requires washing, so it’s just a double payment for the same operation.
Dusty? For me, of course, the engine says ‘thank you’. A pile of dirt? We remove it, take it to a specialist, sort it, put it – it is not difficult and the instructions can be found on the Internet. In some cases it is enough to simply “drive” the engine, and sometimes it is enough to perform a simple procedure of several successive actions.