In 11 years, the Phaeton idle engine shook and ran normally

The spark plug is not good, the throttle valve has carbon deposit, and the cylinder room has a lot of carbon deposit, most of which are these problems, and it is best to go to the maintenance station to check it. Thanks,

You need to clean the throttle, the reason why there is a bit more carbon deposit, I hope mine can help you, thank you [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Check whether there is too much carbon deposition in the lower throttle valve This can easily cause this kind of problem. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, clean throttle carbon deposits, if mine is helpful to you, please set to, thank you!

Check out the spark plugs at the garage. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, this should be the throttle is dirty.

11 years Phaeton idle engine shaking. It's normal to run The exhaust pipe is very black, it doesn't matter, this is a phenomenon of direct injection vehicles Although this is now a unique domestic status quo, Europe and the United States are not so black, you can regularly clean the oil circuit, the exhaust pipe is a little normal It's okay, just don't do it for a long time, it will be like this for a long time, and it will cause serious carbon deposition in the long term, resulting in a decline in engine performance. It is best to adapt to 10,000 kilometers of fuel additives once, so that it will be very clean and not black.

Fuel consumption becomes higher, and carbon deposits in power will cause insufficient combustion of gasoline, causing engine shaking and unstable speed. Difficult to start, easy to stall, high engine temperature, etc. Now, with the development of science and technology, it is also possible to solve the engine shake and unstable speed by not hanging the bottle.

Difficult to start, easy to turn off the problem.

The phenomenon of engine idle instability and jitter is generally directly related to the fuel injection system, ignition system, and idle control system.

and generally only appears on vehicles with a longer mileage. The most common cause is a lack of cylinders. Lack of cylinder refers to a start.

Some of the four working cylinders or six working cylinders of the machine do not work or work poorly, which will lead to the power output of the engine.

It was not smooth, and as a result, the engine shaki.

The easiest way to diagnose cylinder shortage is the "broken cylinder method" diagnosis, and the specific methods are as follows:

When the engine is running, use a wrench to disconnect the high-pressure oil pipe of a cylinder or break the plug, if the engine is obviously unstable and more shaky, it means that the cylinder is good, if the engine is running as usual before the cylinder is not broken, it means that the cylinder is not working;

This is the simple "cylinder breaking method", simple and practical, but it requires the operator to have a certain amount of maintenance judgment experience, if there is a condition, can.

It is detected with a dedicated engine operation detection oscilloscope.

How long has this been a problem? Have you done any repairs?

Volkswagen Suteng cold car start-up shaking, how to solve the Suteng idle jitter, engine idling jitter generally has several situations, gear start shaking, cold start, three-way catalytic temperature is not enough, the most common reason for the serious carbon deposition of the engine caused by the car shake is that the throttle is too dirty or the fuel injector is too much carbon, because the gasoline adsorbed on the carbon deposit after the car is sucked into the cylinder by the engine for combustion, and the combustible mixture of the engine is dilute and thick, resulting in idle jitter after cold start. Solution: Siyoupu cleans the oil circuit and checks whether the idle motor has carbon deposits and should be cleaned.

How long has it been since you bought a car? How many kilometers?

It is basically caused by the intermittent lack of cylinder work in the engine, and it is recommended to check the circuit oil circuit and spark plug.

What is the reason for the unstable idling speed of the car, up and down? 1: Ignition system failure causes the internal energy of the system to drop.

2: The intake manifold is leaking, and the speed of the car will be unstable. 3：

If there is too much carbon deposition on the throttle, the idle speed of the car will be unstable. 4: Fuel system failure causes the car to idle unsteadily.

Idle instability is manifested as engine shaking and uneven speed when idling.

The reasons are: blockage of the idle air measuring hole, poor working of the idle device, weak sparks of individual cylinder spark plugs, poor sealing of individual valves, air leakage of the intake manifold, too early or late ignition time, improper idle speed adjustment, etc.

When the engine idle speed is unstable, the idle speed should be adjusted first, if the fault can not be eliminated after the idle speed adjustment, the idle speed measuring hole and the idle air measuring hole should be checked whether it is blocked, if the measuring hole is blocked, it can be cleaned with gasoline or acetone and blown through with compressed air; If the measuring hole is not blocked, the engine speed should be stabilized at a certain speed, and whether there is air leakage in the intake manifold or carburetor or the lower gasket. If the idle speed is unstable and accompanied by the decrease of engine power, the working condition of the spark plug, the sealing performance of the valve and the ignition time should be further checked, and the maintenance and adjustment should be carried out if necessary.

Clean the throttle and check the ignition coil and spark plug.

It's in the wrong place, and the spark plugs are changed, which is very important.

The main reason for Volkswagen idle jitter;

1. The most common cause of car shaking is that the throttle valve is too dirty or the fuel injector has too much carbon.

2. When the carbon deposition inside the engine is too much, the gasoline sprayed by the cold start fuel injector will be absorbed by a large amount of carbon deposition, resulting in the mixture of cold start being too thin, making it difficult to start, in this case, only when the gasoline absorbed by carbon deposition is saturated, it is easy to get started, 3. After the car is adsorbed, the gasoline adsorbed on the carbon deposition will be sucked into the cylinder by the vacuum suction of the engine for combustion, and the mixture becomes thick, and the combustible mixture of the engine is dilute and thick, resulting in idle shaking after cold start. The lower the temperature, the greater the amount of oil required for the cold start, and the more carbon deposits will affect the smooth cold start. Severe idle vibration is generally caused by engine cylinder failure, aging or loose foot rubber, carbon deposits, fuel system failure, etc.

Solution; The best way is to clean the oil circuit, clean it regularly, and use PNF fuel additives to solve the above problems caused by carbon deposits. The fuel quality is not very good or the initial fuel of the new car is stored for too long, resulting in a rapid increase in the colloidal composition of the oil circuit, which will continue to pollute the fresh fuel and cause no good fuel to participate in combustion in the later stage, and the carbon deposition exceeds the standard, which is especially common for China VI vehicles. We can only gradually alleviate most of the problems by maintaining clean oil circuits.

This is a common problem of EA211, which improves the valve structure and also brings new problems, that is, shake twice every few seconds, and the new car is like this. Don't worry because it's not cured, there is a ** down, said this problem, the red light idle put a glass of water can clearly see the shaking ripples every few seconds.