The 307 anti-pollution warning light is on and the car often shakes. Go to the 4S store to clean up the carbon deposit and throttle, or the same. After running at high speed, he returned to normal and reappeared three days later.
It is suitable for cleaning the fuel injection system of various gasoline vehicles and diesel vehicles. ? Thoroughly remove glue and carbon deposits from the nozzle, intake valve, combustion chamber and piston top.
Quickly eliminate the faults such as unstable idle speed, poor acceleration, engine weakness and wheezing, and restore engine power.
Make the oil-gas mixing ratio more accurate and save fuel.
Prevent carbon deposition and engine knock, and reduce exhaust emissions.
It is safe for all components and sensors of the fuel system.
Why do you need nozzle cleaner?
As one of the key components of EFI engine, the performance of injector will be seriously affected. Nozzle blockage will seriously affect the performance of the car. The reason for the blockage is that carbon deposits in the engine are deposited on the fuel nozzle or impurities in the fuel block the fuel nozzle channel. After the car runs for a period of time, the fuel system will form certain deposits. The formation of deposits is directly related to automobile fuel: firstly, because gasoline itself contains colloid and impurities, or dust and impurities brought in during storage and transportation, deposits similar to sludge are formed in automobile fuel tanks and oil intake pipes over time; Secondly, the unstable components in gasoline react at a certain temperature to form colloid and resin-like viscous bodies. When these viscous substances are burned in the nozzle, intake valve and other parts, the deposits will become hard carbon deposits. In addition, due to urban traffic congestion, cars are often at low speed and idle speed, which will aggravate the formation and accumulation of these deposits. The deposits in the fuel system are very harmful. Deposits will block the needle valve and valve hole of injector, affect the working performance of precision parts of EFI system, and lead to the decline of dynamic performance; Deposits will form carbon deposits in the intake valve, which will lead to the untidy closing of the intake valve, unstable idle speed of the engine, increased fuel consumption and deterioration of exhaust emissions; Deposits will form hard carbon deposits on the piston crown and cylinder head, which is easy to cause engine failure due to its large heat capacity and poor thermal conductivity. In addition, it will shorten the service life of the three-way catalyst. The work of injector plays an important role in the power of each engine. Due to poor fuel, the injector does not work normally, resulting in serious carbon deposition in the cylinder; The accelerated wear of cylinder and piston ring will cause unstable idle speed, rising fuel consumption, weak acceleration, difficult start-up, excessive emission, complete blockage of injector and damage to engine. Therefore, it is necessary to clean the nozzle regularly. Long-term non-cleaning or frequent cleaning of the nozzle will have a bad influence. As for the cleaning time, it depends on the condition of the car and the quality of fuel added at ordinary times. Generally speaking, it is recommended that most users clean it once every 20,000 ~ 30,000 km. The car is in good condition and the fuel quality can be extended to about 40,000 ~ 60,000 kilometers. When the injector is slightly blocked, it also has a certain impact on the vehicle condition. Sometimes, there will be such a fault: the car is a little shaky when it starts in first gear, and it disappears when it accelerates in high gear. Assuming that all kinds of sensors on the car are working normally, the throttle is clean and the circuit is normal, it is likely that the fuel injector is slightly blocked. However, when accelerating in high gear, slight gum may be sprayed away (dissolved) again, and the performance of the car will be restored. This slight blockage of the fuel nozzle can usually be avoided. Because slight gum can be dissolved. Therefore, in daily driving, you should always run at high speed to reduce the possibility of carbon deposition. If the fuel injector is not cleaned for a long time, the blockage will be more serious when the gasoline quality is poor or the vehicle runs for a long time, resulting in poor fuel injection, poor fuel injection angle and atomization, poor engine performance at idle speed, acceleration or full load, reduced engine power, increased fuel consumption, aggravated emission pollution, and even made the engine unable to work. Therefore, the nozzle should be carefully cleaned and inspected regularly to ensure its good work.
When do you need to use nozzle cleaner?
Control of fuel injection quantity: The fuel pump pressure of the same type of EFI vehicle is constant, and the fuel nozzle pressure is always constant as long as it is adjusted by the fuel pressure regulator, regardless of the throttle opening. The fuel nozzle is strictly matched with the fuel pump and fuel pressure regulator, and only the designed pressure can achieve the best atomization effect. The pressure is lower than the design pressure, and the sprayed oil is not foggy or columnar, and should not be mixed with air. When the pressure is too high, the sprayed oil is conical and difficult to mix. Moreover, the injection force is too large, and a lot of fuel is directly sprayed on the pipe wall, which directly affects the mixing ratio parameters. The pressure should be constant regardless of acceleration or idling. Different models have different pressures. (The selection of several gears of the cleaning machine mentioned by a friend is actually the pressure selection for different models, not the different acceleration idle pressure, the wrong selection of injection pressure and the poor atomization of the nozzle. ) The injection quantity depends on the injection time. According to the different control methods of electromagnetic coil, fuel injectors are divided into voltage-driven type and current-driven type. Voltage formulas can also be divided into low resistance and high resistance. High resistance can be connected to 12V, and low resistance can only be connected to low voltage. If you connect 12V by mistake for a long time, the coil will be burnt out. When the fuel is injected, the voltage provided by the computer is constant, such as 12V, which immediately becomes 0V when the fuel is cut off. This change is instantaneous, just like 0 and 65438+ in computer language. Alternating current is called positive and negative interleaving. It seems that except for the part in front of the generator rectifier, there is basically no contact with alternating current. When the nozzle is blocked, the fuel injection is not smooth, or there is carbon deposit and colloid in the gap between the nozzles, which can not reach the designed fuel injection quantity or atomization effect and needs to be cleaned.
The role of nozzle cleaning agent:
1, quickly remove the glue and carbon deposits in the nozzle, intake valve, piston ring, combustion chamber and other parts, restore engine horsepower and save gasoline consumption.
2. Improve gasoline performance and reduce fuel consumption. ? Working condition of injector before cleaning.
3, eliminate the failure of climbing weakness and acceleration lag, improve the acceleration performance and restore power.
4, eliminate idle instability, vehicle trembling, midway flameout fault, make the vehicle running smoothly.
5. Improve cold start performance.
6. Reduce noise and exhaust emissions.
Usage:?
1, cooperate with fuel system cleaning equipment for cleaning.
2, directly into the fuel tank, each bottle can add 60L-80L fuel.
It is recommended to clean every 1-20000 km.
BMW's experiments have confirmed that when the intake and exhaust system of the engine is blocked by 15%, the engine power will drop by 50%.
The German Society of Engineers (SAE) also conducted an experiment to verify the experimental results of BMW. Experiments have confirmed that the average dynamic performance of vehicles traveling 70,000 kilometers will decrease by 22.3% (experiments under German fuel standards and air quality). It is reasonable to say that vehicles traveling 70,000 kilometers are still in the best running-in state. What causes the normal state of the vehicle not to come out? The answer is "carbon deposition". Carbon deposition will cause problems such as nozzle blockage, reduced air intake and lax valve closure.
The calculation data of 50 BMW engine combustion chambers after cleaning by the research department of German Unicorn Company shows that the average power is increased by 26.37%, fuel saving 1 1.20%, CO emission is reduced by 53.40%, HC emission is reduced by 49.00%, and smoke emission is reduced by 4 1.40%.
How to use nozzle cleaning agent?
It is recommended to carry out cleaning operation without disassembly and disassembly. Taking the operation method of unicorn nozzle cleaning machine in Germany as an example, the specific operation steps are explained. The whole operation takes about 30 minutes.
1.？ Check the vehicle for faults and locate the oil pipes, fuses and related parts. ?
2.？ Ensure that the engine water temperature is between 80- 100℃. ?
3.？ Disconnect the oil pump circuit and loosen the tank cover. ? Objective: To interrupt the fuel transmission and release the pressure or vacuum in the fuel pipe. ? Mode: Interrupt fuel pump circuit, such as fuse or relay. ?
4.？ In order to reduce the tubing pressure, start the engine, and the engine will automatically shut down after a few seconds.
5.？ Find the engine oil inlet pipe. ?
6. Find a suitable connector and replacement tube, and connect the other end to the outlet of the cleaning equipment. (Note: Please select the appropriate connector model for each vehicle type according to the equipment data)?
7. If there is an oil return pipe, please disconnect the vacuum hose on the oil pressure regulator, block the vacuum hose and the pressure regulating valve, and cut off the oil return end so that the cleaning agent will not return to the oil tank through the oil return pipe. ?
8. Confirm the cleaning equipment: put the outlet valve in the closed position (vertical direction) and rotate the compressed air pressure regulating valve counterclockwise to minimize the pressure. ?
9. Pour unicorn fuel pipeline cleaning agent into the cleaning equipment and lock the upper charging/discharging function valve. ?
10. The equipment is hung under the hood and connected with compressed air. ?
1 1. Adjust the pipeline pressure to the range value. For pressure specifications, please refer to the relevant maintenance manual. ?
12. Open the oil valve and check the pipeline for leakage. ?
13. Start the engine and run it at idle speed until the engine shuts itself down. ? Note: To avoid damaging the fuel injector and fuel system components, do not increase the engine speed when cleaning. ?
14. After the operation, close the oil manual valve; Turn the pressure regulating valve counterclockwise to the end; Interrupt the air pipeline; Press the filling/exhausting function valve to release the internal pressure of the equipment; Open the oil manual valve again; Press the charging/discharging function valve twice to release the internal pressure of the equipment; Wipe the quick connector with a cloth and remove it. ?
15. Reinstall all connectors and connecting pipes. ?
16. Connect the oil pump circuit and lock the tank cover. ?
17. Start the engine, check whether there is oil leakage in the oil circuit, and test the vehicle to ensure that there is no problem and the cleaning is completed.