Modern cars equipped with injectors have many advantages over obsolete carburetor models. But over time, when you have to use low-quality fuel, the elements of the fuel injection system require preventive cleaning. This can be either liquid (chemical) or ultrasonic cleaning.
The operating conditions of automobiles in Russia make periodic flushing of the injector an absolutely necessary procedure. Firstly, because the conditions for the production of 92nd and even more so 95th gasoline leave much to be desired. Not to mention the production of the 98th. Secondly, all brands of gasoline are stored in the same tanks. Over time, resinous deposits accumulate in them. High-octane grades of gasoline dissolve them, and when refueling, fuel oil goes into the tanks of cars, clogging the fuel system. Thirdly, the use of additives that increase the octane number of gasoline is very large in our country.
Therefore, on vehicles with an injection fuel system, fuel lines, injectors and other injection systems require preventive cleaning approximately every 20-30 thousand kilometers. If the total mileage of the machine is small, liquid cleaning is used. On models with high mileage, in cases where the power system has not been cleaned for a long time (or not at all), stubborn deposits accumulate that are inaccessible for a chemical cleaning method. In this case, ultrasonic cleaning of the fuel injection system is used.
Signs indicating the need to flush the injector are:
- unstable idling;
- Difficulty starting the motor;
- appearing dips when the accelerator pedal is pressed sharply;
- decrease in acceleration dynamics and power indicators;
- gaps in the engine cylinders;
- frequent cases of detonation;
- pops in the muffler;
- periodic failures of spark plugs, oxygen sensor (lambda probe) and catalyst;
- decrease in fuel efficiency;
- increased toxicity of exhaust gases (CO-CH content).
With the onset of the winter period of operation, these signs intensify and are especially noticeable. This is due to the natural deterioration of the volatility of the fuel, which leads to difficult starting of the engine.
After the injector flushing procedure, the spark plugs must be changed. Changing the engine oil and oil filter is also very helpful, as there is a possibility of flushing fluid entering the lubrication system.
