Checklist: Vesta car adsorber - malfunctions, installation

The adsorber valve appeared in cars not so long ago - when Euro 3 standards came into force. This is a part that in the Lada Vesta car is located under the hood, next to the intake manifold. The Vesta car adsorber literally draws in fuel vapors and transfers them to the intake module, where they burn. Part malfunctions: clattering, metallic knocking when cold. The price is around 500 rubles. Replacing the Adsorber is not difficult. If a part is knocking, it can be modified; watch the video below on how to do this.

On cars that do not comply with Euro 3 standards, fuel vapors accumulated in the fuel tank, and when the driver unscrewed the gas tank cap to add fuel, he heard a hissing sound - this is how accumulated fuel vapors escaped from the tank through the tubes. This phenomenon is impossible on the Lada Vesta.

However, car enthusiasts are concerned about the knocking of the Lada Vesta canister valve. The sound resembles the clattering sound of small metal parts colliding with each other. The dealer and the manufacturer do not always recognize the malfunction of this mechanism.

If you decide to replace the adsorber valve on Vesta in order to get rid of the annoying knocking noise, get ready to work with wires and buy new spare parts.

The purge valve for the Lada Vesta received catalog number 82-00-248-821, its cost starts from 470 rubles. It is connected to a special tube and an assembled throttle pipe (84-50-006-406, cost from 450 rubles), to a damper (82-00-584-324, cost from 230 rubles).

What does the adsorber consist of - what's inside?

The adsorber on the Lada Vesta is a small-looking detail, but it “doesn’t work alone.” It is only part of the fuel vapor recovery system; it is a kind of container in which fuel vapors are located. They can be used as fuel in the fuel-air mixture; they enrich this mixture in the same way as the fuel itself. The fuel gas collection system component is located near the right wing.

• Fuel vapor pressure sensor (FVPS). It, like all sensors, transmits signals to the ECU.
• A check valve is placed on the tube coming from the fuel tank (directly next to the tank) and prevents fuel vapor from getting back. The same protection applies to fuel.
• Purge valve. Fuel vapor can be used to enrich the mixture in the cylinders. The moment of opening the resulting flap occurs when the engine is running at high speeds - in this case, the ECU sends a command to enrich the mixture.

How to remove extraneous noise

For many people, after a long time, the adsorber begins to make unpleasant sounds. The official dealer is in no hurry to fix the error, and car enthusiasts are looking for ways to fix it. The solution is quite simple. If the adsorber valve is knocking on a Vesta, you need to:

1. Buy vibration isolation and take a hair dryer.
2. Remove the valve and try it on.
3. Cut the vibration isolation to size, heat and smooth it to completely wrap the knot, even in two layers.
4. After this simple procedure, install it back.

You can get rid of the sound of the absorber on the Vesta easily and inexpensively. There will be no noise even with the hood open. The asking price is 500 rubles.

If it seems to you that the canister valve on the Lada Vesta is clicking loudly, try unhooking it from the body and moving it to another place. This could be due to resonance.

Checklist: main malfunctions of the adsorber

First of all, if any part of this system is faulty, a “check” will almost always light up on the panel.

Checking through the diagnostic connector will produce errors P0443, P0444, P0458, P0459.

Deciphering these codes shows the specific cause of the problem in the system. A malfunction of a part of the fuel vapor collection system manifests itself in another way:

1. The adsorber valve on the Lada Vesta is knocking - it’s true. Often this occurs due to deformation, and therefore failure, but in winter, increased knocking may be a consequence of the fact that the lid has simply frozen and hardened, causing the sound to become louder.
2. If the adsorber on a Lada Vesta is loud, this is not always normal. When accelerating sharply, a “throttle failure” is heard and felt. This is the first sign that vapors are not collecting in the container - the ECU sends a signal, but there is simply nothing to enrich the mixture with.
3. When you open the fuel tank, you hear a hissing that is not typical for Vesta. This is the second evidence that the vapors do not collect under the hood, but remain in the tank. The malfunction may be caused by a check valve, sensor, or purge valve.
4. At idle, the speed literally “jumps”, “floats”. The engine may even stall.

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Comments 31

The adsorber valve turns on when it warms up to 45 degrees, and then periodically. When they took the box apart, I also decided to change the oil, so as not to void the warranty, I told them to fill it with my own. Rosneft was filled with half-blue. After this, the box howls louder, before it was less, maybe it was oil, maybe they poured a little oil, maybe it was a lot, or they were just crooked, or they assembled it wrong, but I’m sure it howls louder. I don’t know what was there from the factory, but it was quieter, so you carefully drain the oil, if you don’t like the new one, you’ll put the old one back in. The bearings in the box are sealed, except for the needle ones, they don’t care about the oil. Ride the new one, if it gets quieter or worse write))

All one to one, mileage 500 km, I've owned it for 10 days. While I was choosing a car, I didn’t come across any reviews about the adsorber valve or the rattling of the clutch when warming up. It seems like the majority of the comrades were bought. If I had known and heard this before purchasing, I definitely would not have bought Vesta! I would take the Granta Liftback, it is at least 200 thousand cheaper, for this difference I could still close my ears to it. But for 700 thousand (I have a SW)… DON’T TAKE THE NEWS, THESE SOUNDS IN THE CABIN IF YOU’RE NOT A MUSIC LOVEN WILL BLIND YOUR ENTIRE BRAIN! IT WOULD BE A SHAME TO GIVE SOMEONE A DRIVE AND THIS IS ON A NEW ONE! CAR. If you are satisfied with the sedan body, then there is a sea of ​​competitors, and the cabin will be quiet and pleasant. Do not take, do not repeat the mistakes of others.

How to check

If the clatter of the canister valve is too loud, you will have to start checking. The most accurate method is manual using a multimeter. It works like this:

1. Under the hood of the car, find the wiring block adjacent to the part and inspect it for damage.
2. Treat oxidation with contact cleaning mixture.
3. Using a multimeter, measure the resistance level of the valve winding. The norm is up to 20-30 Ohms. Any violation of the integrity of the winding or exceeding the resistance limit can lead to a short circuit, and this is very bad.
4. In order to subsequently avoid a short circuit in the winding, insulate one of the terminals. To do this, cover it with PVC pipe.
5. To check reliability, pass 12 V from the battery. If the pins do not open, the protection does not work.

The canister valve is knocking, clicking or clicking

We make sure that the noise comes specifically from the adsorber valve, and not from the timing belt, rollers and other elements. To do this, simply press the gas pedal sharply. If the chattering noise does not change, then the source of the noise is the adsorber valve. It is not uncommon for the clatter of the adsorber valve to appear only in cold weather at sub-zero temperatures.

What can you do about it?:

1. Contact an authorized dealer with the problem. If the adsorber valve is truly faulty, it will be replaced under warranty. If they consider that such valve operation is the norm, then there is no point in writing in support of AVTOVAZ.

2. Advice from car enthusiasts (you lose your warranty!). There is an adjusting screw on the side of the valve, which is filled with glue. Remove the glue and turn the screw clockwise 90 degrees. After this, the adsorber valve no longer clicks in the cold.

3. Owners of LADA cars advise spraying silicone grease into the adsorber hole:

If you decide to buy a canister purge valve, then look for it by article number:

• 82 00 248 821 (for Lada Vesta or XRAY).
• 11180-1164200-00, 11180-1164200-01 (for Lada Granta/Kalina)
• 21103-1164200-01, 21103-1164200-02 or 21103-1164200-03 (for Lada Priora and Niva 4x4)
• 8200692605 (for Lada Largus)

Have you encountered problems with the adsorber valve?

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Removing and installing the adsorber on Lada Vesta

After analyzing the entire fuel vapor collection system to find a fault, determine the part that needs to be replaced. The purge valve most often fails and becomes the “culprit” for a knock that can be heard even inside the car. Replacing the adsorber on a car should be done according to the following algorithm:

1. Stop the car in place and open the hood. The part you need is near the right wing.
2. Disconnect the wires. First move the retainer stopper upwards and tighten it so that the wires are released smoothly.
3. Clamp the spring clips securing the tube to the intake module and disconnect it.
4. Do the same with the valve pipe and the wire connected to the adsorber.
5. Remove the valve. Put a new part in its place.

VAZ cars: repair, maintenance, tuning

Gasoline vapors are harmful not only when we inhale them in close proximity to a container or tank of gasoline. Thousands of cars in a big city could emit countless amounts of not only harmful exhaust, but also gasoline fumes. The adsorber is responsible for the amount of harmful fumes, and the adsorber purge valve on the Lada Vesta has some features that the owners would like to get rid of. We will figure out how to replace and repair the adsorber valve today.

Why are hydraulic compensators needed - functions

Compensators in the Lada Vesta engine regulate the gap between the valves and the camshaft under oil pressure. Maintaining pressure is the key to successful operation of the part, when the valves are brought to the “right” position at each stroke of the engine.

In other words, serviceable compensators make the engine work “like a clock.”

The engine will produce maximum efficiency, consuming exactly the amount of fuel promised by the manufacturer, and will produce maximum power. Previously, instead of hydraulic pushers, mechanical regulators of gas distribution mechanisms were installed (on Zhiguli). They were enough for 10,000 km before adjustment, which was done manually.

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