After cleaning the engine throttle, how many days later, the engine idle speed is still low, and the

The main reasons for the phenomenon of shaking, unstable idling, inability to refuel, inability to hit the car, and failure to start the engine are as follows: 1. The battery voltage of the car is low; Specific detection method: test the battery voltage with a three-purpose meter voltage level, if it is below 10V, it is recommended to replace it.

If it is around 11V, it is barely used; Be prepared for replacement. Above 12v can be used, but other reasons need to be found; 2. Check whether it is caused by carbon deposits; If you travel about 20,000 km, focus on checking and cleaning the throttle; 3. Inspect, test and replace spark plugs; 4. Confirm the quality of the gasoline added; 5. Detecting the ignition switch; 6. Test and detect the starter, gasoline pump, sensor and other related components of the starting and oil supply system; 7. After powering on, do not start immediately, wait for 30 seconds to 1 minute, and then ignite; See if it works; Regardless of any of the above situations, pay attention to the time when the car cannot be hit once, be sure to play again after an interval of 15-30 seconds to protect the battery but not generate power and prolong its service life. If there is no fault in other parts, the throttle is not cleaned thoroughly.

Engine idle jitter is linked to both ignition and cylinder pressure. Idle jitter is a cylinder that does not work well, you can test whether the pressure of each cylinder is close, and then check whether the ignition and gas distribution system are coordinated.

First, use the car diagnostic instrument to check the idle stepper motor and throttle position sensor if there are no faults. Cleaning the oil circuit, after changing a fuel filter is ok I also encountered a similar problem yesterday! (You can also try it).

It is recommended that you clean the throttle and idle motor First, the ignition performance is not good, the second is the fuel injection performance of the fuel injector, the oil pressure is unstable, etc., the third is the air leakage of the intake system, and the fourth is the uneven contact surface of the clutch.

Why don't you replace the air filter after cleaning the throttle? The dirty air filter directly leads to dirty throttle, resulting in dirty mixed air, and then causing the idle speed of the car to be unstable.

Washing the fuel injector, the single cylinder fuel injection is not smooth or it may tremble, and the direct reason for the low idle speed is the idle motor and side channel.

There are several possibilities! First, the idle valve was too dirty and not thoroughly cleaned; Second, there may be too much residual cleaning agent during the cleaning process, and it has not been completely burned off; third, caused by poor sealing of the throttle body; Fourth, there is no re-execution of computer data matching! It is recommended to go to a repair shop for inspection and treatment.

Engine idle jitter is related to many factors, such as intake air leakage, poor exhaust, misfire, low cylinder pressure, etc.

The reason for the idle shake of the throttle after washing the throttle is that there is no data matching. After cleaning the throttle, you need to reset the computer or disconnect the negative pole of the battery to reset the throttle valve of the computer.

The throttle valve is a controllable valve that controls the entry of air into the engine, and after the gas enters the intake pipe, it will mix with gasoline to become a combustible mixture, thereby combusting to form work. It is connected to the air filter and the engine block, which is known as the throat of the automobile engine. The throttle valve is one of the most important components of the EFI engine system today, its upper part is the air filter air grid, and the lower part is the engine block, which is the throat of the automobile engine.

Whether the car accelerates flexibly or not has a lot to do with the dirt of the throttle, which can reduce fuel consumption and make the engine flexible and powerful.

How to clean and prevent need to pay attention:

1. It should be disassembled and cleaned;

2. Correct some cleaning errors of the throttle;

3. The main reason for the formation of throttle dirt comes from oil vapor, followed by particles and moisture in the air, that is, in the case of using a qualified air filter and removing the crankcase ventilation pipe, the throttle dirt speed will be much slower.

Photo by Qi Hesong of Pacific Automobile Network).

This is caused by not re-matching the computer after cleaning the throttle valve, which can be solved by re-matching the computer. If it doesn't match the computer, the engine won't shake after a while.

Automotive engine control computers have powerful learning capabilities. When carbon deposits on the throttle, the engine computer can sense the carbon deposits on the throttle, and then the computer will use another method of controlling the throttle to control the throttle. After cleaning up the carbon deposits on the throttle, the computer does not immediately perceive that the carbon deposits have been removed, and it also uses the control method of carbon deposits on the throttle to control the throttle, so that the engine will shake and fuel consumption will rise.

After using it for a while, the computer will know that the carbon deposits on the throttle have been removed and the engine will return to normal.

It is recommended that the rider re-match the computer after cleaning the throttle, otherwise it will increase the fuel consumption of the car.

Cleaning the throttle is a maintenance item that many riders do regularly. Some cars will have a large amount of carbon deposits after using the throttle for a long time. Cleaning the throttle is also very simple, just remove the throttle, then clean it with a professional cleaner, and finally wipe it clean.

Be sure to use a special cleaning agent when cleaning the throttle, otherwise it may damage the electronic components on the throttle.

Do not add low-quality gasoline when using the car, otherwise the throttle is more likely to produce carbon deposits.

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Summary. Hello! Generally, after the electronic throttle is washed, it needs to be matched by computer to set the throttle.

After cleaning, the throttle idle speed shakes the high and low speeds.

Hello, I'm helping you sort out the answers to your questions, please wait a moment

Today, I cleaned the lower throttle, installed it and did computer matching, but the engine idle speed is still high, and the D gear will shake, and it will also shake at low speeds.

Hello! Generally, after the electronic throttle is washed, it needs to be matched by computer to set the throttle.

Hello! What car what year.

My car is a 2016 displacement Nissan Sylphy The idle speed is stable, the idle speed of the hot car was originally 900, and now it has not come down at 1000, and there will be a sense of lag when stopping and changing D gear, and it will be accompanied by shaking.

It should be a throttle leaf pickup, or there is a leak in some places.

Is it the card of the throttle switch?

It's just that the valve in the middle of the throttle is stuck, and it's leaking, right?

Does this situation generally need to be replaced? Still is?

That's right, either the throttle blade return is not as good as it used to be. Generally, we wash the throttle with electricity, or our hands do not touch the blade in the middle.

Turn on the key and don't get into the car, step on the gas pedal a few more times to see if it works?

When installing the throttle, the rubber pad under the throttle valve is not buttered, if there is no butter, it is easy to leak.

I didn't remove the cleaning I just sprayed some throttle cleaner with a towel, and the leaf in the middle was opened by hand Could it be that this is the reason why the leaf is not closed well, if there is a problem with this leaf Is there a way to repair it? The big guy helps.

Now I can only be a dead horse as a live horse doctor, push the blades in the opposite direction of the opening, and see if it works, if you can't hand over the car, you may have to change it.

If I can help you, please give me a thumbs up Thank you!

There are many reasons for idle judder, the first of which is that the throttle is too dirty or the fuel injector has too much carbon, resulting in a cold start mixture that is too thin, resulting in difficulty in starting. If it is determined that this is the case, the main throttle or fuel injector is cleaned, and the oil circuit must be cleaned at the same time, followed by the ignition system problem, the spark plug has too much carbon deposit, which will cause the ignition system to work poorly, so that the whole car works poorly, therefore, the spark plug needs to be cleaned with carbon deposits. Although it will shake when driving, it is relatively insensitive due to the vibration of the body, especially the hydraulic feet used by many German cars, the shock absorption effect is better, but the life is relatively lower.

Air intake system, check the throttle valve, idle motor (some models do not have an idle motor), check whether the intake pressure sensor and air flow meter can transmit normal working signals to the vehicle ECU (vehicle computer). If it's a slight jitter, it's normal, don't panic. If it is intermittent jitter, there are the following problems that need to be paid attention to by the car owner for the car owner's reference.

Let's figure out this logic first, and then elaborate on what the throttle is.

The spark plug has a lot of carbon deposit, and the ignition is poor due to serious ablation, and the spark plug needs to be replaced if the ablation is serious, and the carbon deposit can be cleaned up and used if there is carbon deposit. For example, whether the combustion chamber, throttle and other parts have serious carbon deposits, whether the foot glue is aging, whether there is a lack of fire, and whether the engine control system circuit is in poor contact, etc., need to be checked one by one. First of all, the function of the throttle is to control the air intake of the engine by adjusting the angle of the flap opening, and the engine speed is low at idle state, and the demand for air intake is small, so the opening of the throttle is also relatively small.

As a result, the intake air flow rate is constantly changing, resulting in a change in the mixing ratio, so the engine speed will change suddenly, and the speed will change too suddenly, giving people the feeling that it is intermittent shaking.

There is also a possibility that the throttle position sensor is faulty, which will also cause the engine to shake at idle speed, and even at low and medium speeds, which will need to replace the position sensor or throttle assembly for maintenance. And this kind of congenital jitter is almost incomprehensible, mostly in new cars, or quasi-new cars running thousands of kilometers, unless the manufacturer upgrades the engine warm-up control strategy, there is no way to solve it in any other way!

Not necessarily. Because the car has a slight intermittent jitter at idle, there are many reasons for it, so it's not necessarily that the throttle is dirty.

It is true that the throttle is dirty, but it may also be due to serious carbon deposits in the transmitter.

It is also possible, but it is not certain, and the shaking of the car when idling may also be a problem with the braking system, not necessarily that the throttle is dirty.

Yes. You can drive the car into the 4S shop and clean the throttle to eliminate this shaking.

If this is the case, it must be that the car's throttle valve is dirty. We only need to go to a professional car repair shop to clean the throttle and we can solve this problem.

I don't think it's due to a dirty throttle, it's due to engine failure, and it needs to be repaired in time.