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List of contents of this article:

• 1, Let's see how the engine fuel injector is cleaned?
• 2, How to judge whether the fuel injector of the car should be cleaned?
• 3、How to clean the polo fuel injector

Let's see how the engine fuel injector is cleaned?

1, "Next, let me explain to you: The correct cleaning method of the fuel injector of the direct injection engine is as follows: remove the fixing screw of the oil rail.Teatively shake the oil rail and remove it to avoid damage to the fuel injector seal. Ensure that the negative pole of the battery is always disconnected; remove the fuel injector from the oil rail.

2. First, wipe the surface carefully with a cloth and a paper towel, in order to prevent large pieces of dirty things from falling into it. Seeing how dirty the oil nozzle is, I think that if you haven't cleaned it, the situation will be the same. Then wipe the inside with a paper towel. Up to the top, I haven't used the oil chemical agent. Finally, of course, I will clean the inside with the oil chemical agent.

3. Even make the engine unable to work. Therefore, the fuel nozzle should be carefully cleaned and tested regularly to ensure that it works well.

4. Blockage is divided into two types. One is that the fuel injector is in the combustion chamber. The external blockage of the fuel injector is caused by ash and carbon accumulation, and the other is the internal blockage caused by oil products in the oil road.These two blockages can be cleaned and dredged by PNF additives, which is non-corrosive and does not hurt the car. But you must use effective additives.

5. Put the fuel nozzle directly into the cleaning tank, and it can be cleaned in an all-round way. Before ultrasonic cleaning, check whether the fuel nozzle is atomized, the degree of response, the sensitivity of the switch, whether there is oil leakage, etc. Ultrasonic cleaning equipment can evenly clean blind holes and uneven places, reducing the cost of cleaning and labor costs.

How to judge whether the fuel injector of the car should be cleaned?

1. Idling shaking, especially when starting, is easy to shake. When encountering these situations, it means that the fuel injector needs to be cleaned. Under normal circumstances, it is enough to carry out normal maintenance and cleaning when the car travels for 4-6 thousand kilometers. Don't worry too much, thinking that the fuel injector is not a consumable part. Excessive cleaning will lead to the scrapping of the fuel injectot in advance.

2. When the fuel injector is dirty, the car will have the following obvious performance: the engine noise becomes louder, especially in low gears and below 2500 rps, which is more obvious.The throttle response is not sensitive, the driving is not smooth, and there is a lag phenomenon after stepping on the accelerator. After stepping on the accelerator in the idle gear, the engine speed rises slowly.

3. The owner can judge in four ways: check the gasoline filter; check whether there is obvious jitter when the car starts; whether the vehicle consumes special fuel; put a blank sheet of paper at the tail of the exhaust pipe and observe its color. It should be noted that if you clean it by yourself, you should pay attention to whether the sealing ring is aging.

4. How to judge whether the nozzle needs to be cleaned? Although there are many ways to judge whether the nozzle needs to be cleaned, it is difficult for some car owners to judge whether the nozzle is only slightly blocked. Then I will share with all car owners how I judge whether the oil nozzle needs to be cleaned. Check the gasoline filter.

5. PassWith such a simple identification method, basically even car owners who are not familiar with the vehicle can more accurately identify whether there is a problem with the fuel nozzle of their car and decide whether to repair the vehicle according to their own test results.

How to clean the polo fuel injector

There are many ways to clean the fuel injector, such as hanging bottles and using professional detergents. Although these methods have certain uses, you should pay attention not to be fooled by merchants. The most effective way is Replace the filter and remove the fuel injector for thorough cleaning. At the same time, pay attention to whether the sealing ring on the nozzle is aging. Be especially careful when removing the filter.

Special cleaning agent is required to clean the nozzle. It is recommended that you use Carbon King oil nozzle cleaner. It can remove carbon and glue in the fuel injector, intake valve and combustion chamber, and restore power performance.

The fuel injector is on the engine cylinder head. There is a harness connector on it.