Audi A6L 3 0TFSI idling unsteady when getting on in the morning, what is the reason?

The main cause of idle jitter;

1. The most common cause of vehicle shaking is that the throttle 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.

If the idle speed is unstable when the car is hot, the main cause is carbon deposits. This is mainly due to carbon deposits and gasoline, and even the marking of gasoline and impurities of gasoline cause incomplete combustion in the process of caring, and more carbon deposits are generated on the valve. When there is a large amount of carbon deposition on the intake valve, it will cause bad starting, when the cool car is on the car, the volatility of gasoline is not good, there will be more gasoline attached to the intake valve, and the mixture that actually enters the cylinder is thinner, resulting in unstable idling, accompanied by sudden sound, and normal after hot car.

The quality of gasoline in China is not good.

There are a lot of cars like this.

Because the car is pregnant with birds. Hey.

It is related to the water temperature, and there will be many reasons for it, depending on the engine sound, it is recommended that you go to 4S to see.

Hello, a common source of instability caused by idleness.

The problem is that there is a problem with the throttle or the exhaust valve, the exhaust valve you can judge by yourself, when the vehicle is idling, to screw the cover of the oil filler, if the suction is particularly large and can not be pulled out, it is the waste valve is broken, and a new one can be replaced, if it is easy to pull it out, it means that the exhaust valve is no problem, it may be a problem with the throttle, then you have to go to the service station to check and repair it, I hope my answer can help you [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

If there is a failure in the basic setting of the throttle, it is usually a problem with the throttle body or wiring. If the fault occurs repeatedly, the quality of the throttle may not be good; Measure the voltage of the ignition switch of the idle motor voltage switch, and the valve power supply is powered by the main relay next to the computer to see if there is a problem.

Hello, it is recommended that you check the throttle, or clean the throttle, and then match the throttle, I hope it can help you, thank you, I wish you a happy car! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

The old Audi acceleration is weak, idle is unstable, personally think that it is mostly caused by too much carbon deposits in the car's engine, it is recommended to check whether the spark plug of the car needs to be replaced, and whether the throttle valve needs to be cleaned.

In this case, first check whether there is a fault**, and then check whether it is caused by too much carbon deposition in the engine.

The main thing to look at is the throttle and the intake and exhaust valves.

Hello, it is generally due to the dirty throttle, poor air intake, abnormal engine computer idle adjustment, need to clean the throttle computer matching, it may also be the battery negative pole pile head loose caused by abnormal idling, or it may be the throttle itself idle control module failure, you need to go to the maintenance station to check, I wish you a happy car! [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, your fault should be due to a long time without cleaning the throttle, too much carbon on the throttle, resulting in the engine computer can not accurately control the amount of air intake, resulting in poor idle control, idle speed is too high, only need to clean the throttle, use the computer to do a match, I am happy to answer your questions, I hope to help you, I wish you a happy car! [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

You take down the black plate at the back of the engine near the firewall, and there's a half-palm-sized wastegas valve underneath! Swap it out and you're good to go!

First of all, tell me, how many kilometers has your car been running?

Causes of unstable car idling;

Throttle oil and throttle carbon deposits, dirty intakes, blocked intakes can cause idle pulling, throttle carbon deposits or oil are the most common causes of unstable idling.

Spark Plug Failure: Weak sparks caused by individual spark plug failures can also cause carbon deposits, which can be cleaned to restore spark plug activity, but some spark plugs have a fast lifespan and can reduce performance.

Blocked oil circuits: There are also oil circuit blockages and intake pipe failures represented by fuel injectors. When the oil circuit represented by the injector is blocked, the fuel supply pressure is insufficient, the fuel atomization is poor, the mixing ratio is unbalanced, and the combustion is incomplete, which leads to related failures.

Specific solutions to idle jitter:

1. The engine has serious carbon deposits. The most common cause of idle judder is excessive carbon build-up on the throttle or injector. When there is too much carbon deposit inside the engine, the gasoline sprayed by the fuel injector during cold start will be absorbed by the carbon deposit, resulting in a mixture that is too thin and making it difficult to start.

After landing, the gasoline adsorbed on the carbon deposits will be sucked into the cylinder by the engine and burned, which will thicken the mixture. The mixture is sometimes dilute and sometimes thick, which will cause idle jitter after cold start. The lower the temperature, the greater the amount of oil required for cold starts, and the more the presence of carbon deposits affects cold starts.

The solution is to clean the carbon deposits at the throttle and injector.

2. Poor ignition system and poor ignition of spark plugs will also lead to engine idling and shaking. If there is a problem, check if the ignition system is faulty and if there is too much carbon deposited in the spark plug.

3. The oil pressure is unstable. If you have cleaned the engine carbon deposits, cleaned the throttle valve or replaced the spark plug, and there is still the problem of body shaking when idling, it is recommended to go to the 4S shop to check whether the fuel supply pressure and intake pressure sensor are normal. If the oil pump supply pressure is not normal or the intake pressure sensor is incorrect, it can also cause the body to shake when idling.

Solution; The best way is to clean the oil circuit, clean it regularly, there is no specific experience in the research and development parameters of the clean engine from the new car, coupled with the continuous improvement of emission standards, can not adapt to the change of fuel, all manufacturers of the engine are unable to solve this jitter problem in the short term, plus the fuel quality is not very good or the initial fuel of the new car factory 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. The occurrence of excessive carbon deposits is especially common for China VI vehicles. We can only gradually alleviate most of the problems by maintaining clean oil circuits. The use of PNF dope fuel additives can solve the problems caused by carbon deposition.

Idle power may not work, clean the air inlet to try.

Audi idle unstable, possible causes: dirty throttle, dirty fuel injector, dirty intake tract, poor quality of gasoline, excessive carbon deposition in the spark plug or large gap between the spark plug for a long time, and dirty gasoline filter.

Judging from the specific situation, there are many other problems, such as damage to the vacuum tube and air leakage in the air intake system.

What is the fault of Audi idle instability?The exhaust pipe is indeed not the only basis for judging carbon deposits, for example, the exhaust pipe is very black, which does not mean that there is a lot of carbon deposits in the combustion chamber oil, but at least it is certain that the combustion is not good, and the long-term combustion is not good, it must be carbon deposits. The oil circuit is not only a problem of carbon deposits, but also the phenomenon of jitter is not enough to remove carbon deposits, and many places need to be cleaned.

10 sesame oil with a general fuel additive, the earth dream engine 10w kilometers without any jitter has been smooth as new.

First, it should be the failure of the EGR valve and the throttle valve! After a long time, these two valves will be blocked by oil or garbage, resulting in high and low idling! Clean it with a cleaner and then reset it with a professional fault meter, and you're done!

Second, see if there is a vacuum tube leakage, because if the vacuum is not within a limit value of the vehicle, there will be this idle jitter failure, third, spark plugs, high-voltage wires, ignition coils, use the wheel cylinder detection method, or the method of measuring resistance, to see if any cylinder is working badly! It should be the fault of these three aspects!

Hello, this situation is mainly caused by the inaccuracy of the throttle signal, you need to clean it, rematch it with a decoder, and return to normal, but also check whether the intake pipe is leaking, whether the air filter is sealed, air leakage, this situation will also occur, you need to go to the store to do the next inspection, timely maintenance to ensure that the driving is stable, comfortable and safe, thank you.

06 The reasons for Audi's idle vomiting are as followsFirst of all, it is necessary to determine whether there is any abnormality in the power performance of your vehicle's engine, if there is: it may be your fuel pressure and oil problem, ignition system failure.

If not: it may be that your vehicle's air grid is not installed properly, foreign objects have entered or the inside of the exhaust pipe muffler is broken!

Features of the Audi A63 point 0L.

The 3 point 0L natural engine has its own unique advantages, that is, the power output is smooth, there will be no frustration when the turbocharged engine accelerates, and the ride comfort is better, the naturally aspirated engine has a large displacement and sufficient confidence, so it is very fast when it starts with a trillion steps, and the turbocharger does not immediately intervene when it just starts, so the start will be slightly slower.

In terms of cost, the larger the displacement, the cost of the naturally aspirated engine is much higher than that of the turbocharged engine, and the turbocharged engine obtains the same power output at a lower cost, which is why more and more models are now equipped with turbocharged engines, in terms of fuel consumption performance, the turbocharged engine because of the increased air intake, the fuel gets more sufficient fuel, and the fuel consumption is lower than that of the 3.0L naturally aspirated engine.