Lada Vesta is equipped with one of two gasoline engines – 21129 (1.6 l.) or 21127 (1.8 l.). The control system is electronic. Initially, the operation of the computer and feedback sensors is finely tuned. However, over time, a problem arises - instability of speed at idle and while driving. Determining the exact cause is often difficult due to the fact that the Check Engine light does not light up, so scanning the ECU is useless. Still, you can identify the flaw of uncomfortable functioning on your own.
Check and test
I removed the lower fitting of the adsorber valve, the plug with wires. I applied 12 volts to the valve and it opened. When I removed the throttle, I plugged the hole on the back side. He took a cigarette and lit it. When the valve was open, I blew into it. With my other hand I blocked the second channel into the intake manifold. What do you think happened? Smoke came out of the hole.
As a result, I concluded that the connections of the tube going from the valve to the intake manifold were leaking. Therefore, air is sucked in in a large volume. Everything below the canister valve does not need to be sealed. This does not affect the operation of the Lada Vesta engine, since air flows freely into the adsorber through the white fungus.
What methods have you tried?
On the Internet I found different solutions to the problem when the Lada Vesta twitches, and I used them. Some people advised putting caps under the clutch pedal sensor. Others argued that if you fill a full tank of gasoline, the car will jerk.
I tried this out, filled the tank full for a week, then drove with an almost empty tank. I didn't notice any difference.
Then they told me that a vacuum was being created in the tank, so the fuel pump pumped poorly and did not create the required pressure. They advised to put a cap with a valve from Renault Logan on the fuel tank. It fits Vesta. This also did not help; the standard factory plug has the same valve.
Poor hood seal
For the first year and a half, Vestas were fitted with a hood seal of two halves with a gap in the center near the lock. It was there that dirt broke through under the hood in huge quantities. Over 15–20 thousand km, the engine compartment becomes suitable for planting vegetables.
Later the plant switched to solid rubber. The trouble is that in the central part it is still not glued. The rate of contamination of the engine compartment has decreased, but has not become zero. Lovers of cleanliness still need to do “collective farm” work in every nook and cranny of the car. And not only them: Vesta is so dirty in this part that even checking the oil level is unpleasant.
- A wide range of auto chemicals and many useful car accessories can be found on the pages of the Za Rulem store.
The right way
Finally, they gave me some good advice: check the tube between the canister valve and the intake manifold. In fact, a large vacuum is created in the starting system. If there is air leaks in the tubes, the fuel mixture will become lean. As a result, the engine will jerk.
I checked the fitting of this tube at the entrance to the manifold - it was loose.
At the second end of the hose, the same thing happens - the fitting moves and is not seated tightly.
The adsorber itself, which is made in the form of a white fungus (visible below in the photo), sucks air from the atmosphere. Due to the vacuum in the intake manifold, gasoline vapors are sucked into the intake system through the canister ventilation valve.
There is a green rubber ring installed in the fitting. It should seal the connection well. To check the quality of the seal, we had to conduct an experiment.
Scratched glass
Another problem for Vesta, which appeared immediately after the start of sales. Vertical scratches appeared on the side windows in just a few lifting and lowering cycles. It was all blamed on the door seals being too rigid and too close together.
Dealers cut them and changed them, but, according to our observations, it helped little. Judging by the number of abrasions and small chips on the windshield of the editorial car, Vesta uses too “soft” glass. But here the plant did not make any changes: they continue to install the same Sisecam on the cars.
How to troubleshoot
All that matters to us is the ill-fated pipe in question.
The order of my actions (step by step instructions):
- I removed the wallpaper from the ends of the tube.
- I measured the diameter of the inlet pipe with a caliper: it turned out to be 8 mm.
- I didn’t wrap electrical tape or fum tape around it or lubricate it with grease. I decided to make it more reliable. I carefully examined the tube and found no defects. But for some reason the air is sucking in. A tube with a diameter of 8 mm fits into the fitting. We need to come up with something to improve the tightness. I recently replaced the flexible hoses on my kitchen faucet. I remembered that there is a rubber ring on the hose.
- I measured the bore diameter, and it turned out to be 8 mm too. So the ring should be ideal for our case.
- I bought 3 plumbing repair kits to get rubber seals from them. I couldn’t buy the rings separately—I couldn’t find them on sale. It would cost 5 rubles, no more.
Kits are sold by different manufacturers, and the sizes of sealing rubber bands may vary. Therefore, if you use a ring that is too thick, you may break the plastic fitting. The place where the latch is attached may also break off. I am not imposing this procedure on anyone, use the advice at your own responsibility. But it helped me solve the problem.
I tried to put the elastic band on the pipe - it stood up like a native one! Maybe AvtoVAZ forgot to install them. Of course, they are not oil resistant, but in this case this will not matter. I put the fitting on top and it was a little loose. I put on the second ring - also rather weak. Then he put on the third one.
After that I put the fitting on tightly, it turned out very tight. From the other end of the tube I performed similar procedures. Now nothing is loose. I installed a decorative engine cover.
Stabilizer bushings creaking
This is perhaps the first mass criticism of the brand new Vesta. The cars began to be sold at the end of November 2022, and even before 2016 began, unflattering reviews began to pour in.
At first, dealers lubricated the squeaking rubber bands, then the factory offered a replacement. Which, by the way, still creaks for some particularly “lucky” newsreaders.
The people's ingenuity did not stand aside either. People massively selected alternative parts from foreign cars, simply focusing on similar dimensions. You can find more than a dozen different options on the Internet, from popular to elite. They didn’t experiment with the editorial machine, and at the next maintenance the dealer replaced the bushings with modernized ones under warranty. It became quiet.
Service cost
Moscow and region
The service is provided on site or at the address: village. Fork, 2a . The village is located outside the Moscow Ring Road along Kashirskoye Highway opposite the state farm named after. Lenin. See further down the site for the service provision period.
Ask questions to the master by phone: 8-965-321-31-01 (Beeline Moscow).
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St. Petersburg and region
The service is usually provided on site in your territory. Description of the terms of service further down the site.
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Cheboksary
See further on the site for the provision of services in Cheboksary
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Nizhny Novgorod
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Naberezhnye Chelny
In Naberezhnye Chelny, the service will be provided upon arrival in the city. See the schedule further down the site.
You can ask questions by phone: 8-987-406-77-07 (MTS Nab. Chelny) 8-937-57-11-007 (Megafon Nab. Chelny)
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Ekaterinburg
See further on the site for the provision of services in Yekaterinburg The place of stay will be Pervouralsk.
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8-965-070-65-01 (Beeline Peter) WhatsApp.
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Chelyabinsk
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See further on the site for the provision of services in Ufa
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Samara
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See further on the site for the provision of services in Tula
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Voronezh
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Rostov-on-Don
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Krasnodar
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Novorossiysk
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Anapa
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Penza
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Ulyanovsk
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Tambov
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Saratov
See further on the site for the provision of services in Saratov The place of stay will be Tatishchevo.
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Tolyatti
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Engine oil burner 1.8
The VAZ 1.8 engine with a power of 122 hp took a long time to reach production cars. I was upset by three things: I turned out to be not so cheerful, I was hungry for gasoline and oil. Of course, oil loss is not on such a scale as on other turbo engines, but before Lad engines were not noticed in this way in principle, and therefore the topic has become acute.
Fuel consumption in traffic jams is good for 10 l/100 km, the owners of the West 1.8 just have to come to terms with it. But AVTOVAZ indirectly acknowledged two other problems by upgrading the engine. To improve traction characteristics, the firmware was changed. Maslozhor was eliminated by a whole range of modifications to the hardware and assembly process.
There seem to be fewer complaints, but evidence of increased consumption still occurs. Those who attended a long-term test in the editorial office of Vesta with a 1.8 engine also noted this.
The main disappointment in the car: A motorist spoke about the problems with the 1.6 106 hp engine in the LADA Vesta
The VAZ engine is the anchor that prevents Vesta from becoming a modern car.
Photo: LADA Vesta 1.6, source: m.auto.ru
The main complaint about the 1.6-liter VAZ-21129 engine with a power of 106 horsepower, designed and assembled by AvtoVAZ, is its archaic nature. This opinion was shared by a motorist on the YouTube channel “LADA Vesta Blog” after 4 years of ownership. But even this LADA Vesta has its advantages.
Archaic and problematic “129th”
Because of this, car owners have to face a lot of problems:
New LADA Vesta FL 2021-2022: What is known about restyling today
LED optics, a tablet a la Tesla in the cabin and a more powerful engine - these are the innovations the updated Vesta will boast. The platform and overall design have not changed, but many cosmetic ones have appeared.
Among the advantages of the “anchor”, motorists note its reliability, provided that the oil, filters and timing kit are changed in a timely manner. The engine surprises with its service life, reaching 300-400 thousand km without capital. The maintainability, simplicity and low cost of servicing the unit is enviable.
The engine lends itself perfectly to “chipping” and boosting up to 130-150 “horses”, if you want to “experiment”.
Photo: Exterior, interior and engine of LADA Vesta 1.6 AMT, source: YouTube and LADA
However, the “newsman” noted that now, having experienced all the shortcomings of the “archaic” engine, he would take the Vesta with a 1.6-liter 113-horsepower unit from Renault paired with a CVT.
In addition, the constant “tugging” of the manual transmission lever is a thing of the last century; even the “blunting robot” is more progressive and provides more comfort than the “handle”.
Source
Inoperative turn signal repeaters
LED turn signal repeaters in mirror housings turned out to be unreliable. At first they were leaky and were killed by moisture getting inside. Then they began to die completely and immediately, without the help of water. Failures are recognized as covered by warranty without any problems. Now her treatment is much simpler than in the early years of West's graduation. Then we had to wait for the delivery of assembled mirrors, already painted in the color of the body: long, expensive and stupid. Now only the optical element itself is changed. Owners of out-of-warranty cars need not worry: it retails for about 500 rubles.
Operating principle of the electronic pedal
A gearbox, an electric motor and two sensors are built into the throttle body. The electric motor turns the throttle valve through a gearbox, and its position is monitored by two sensors.
The electronic gas pedal is a plastic lever, and two sensors are installed in the bracket. All elements are a single structure (gas pedal module). The sensors are potentiometers, the moving contact of which is rigidly connected to the rotary axis of the pedal lever.
electronic gas pedal Lada Priora, Granta, Kalina, Vesta electronic gas pedal Lada Priora, Granta, Kalina
The electronic control unit (ECU) continuously monitors the pedal position based on sensor signals. Based on these parameters, the ECU sends control commands to the throttle gearbox and to the fuel injectors.
Lada Vesta twitches, what to do
On cars of the Lada Vesta family, one of the most common problems is considered to be jerking of the car, which can manifest itself when releasing the gas, driving at low speeds and when changing gears. The problem has been discussed since the first appearance of the Lada Vesta on the Russian market and occurred on models with 1.6 and 1.8 liter engines. In search of a solution to the jerking, procedures such as adapting the throttle and adjusting the clutch sensor using improvised means were carried out. Unfortunately, none of them was a universal solution; some owners spoke about improving the behavior of the car, but the twitching was not completely eliminated.
Terms of service
The knot itself can be removed anywhere. This can be done in the garage. But usually, the unit is removed near the client’s entrance. We remove the knot. Let's go home. Sharpening. We take it out, install it, check it. You don't have to drive across the city, stand in traffic jams, etc. You save a lot of time and nerves.
If you have the opportunity and your superiors, we can provide the service right at your place of work. You can drive home from work with pleasure from the way your car drives. The service can also be provided with travel to nearby settlements from the city, which can be reached by bus or train. In this case, transportation costs are added to the cost of the service. In any case, these expenses will cost you less than your arrival. You can save on transportation costs if you cooperate with someone and the service is provided to someone else besides you.
* To work you need a small table, chair and 220V.
And, of course, it is desirable that the car is clean. Or there was some kind of rag to cover the dirty fender of the car. It is also necessary to have a rag for washing the throttle.
For reference: sawdust does not fly all over the space. Metal filings don’t go anywhere beyond the newspaper.
Rusting exhaust corrugation
The short-lived exhaust system has always been the “calling card” of domestic cars. Vesta remained faithful to tradition. The corrugation rusts very actively! For some time the sound will remain within the bounds of decency, but then it will “break through” anyway, and you will go to the service center with the roar of a fighter jet.
When it started to “hide” under our bottom, the odometer showed 38,000 km. According to the conditions in force at that time, the release was covered by a warranty for a year or 35,000 km. However, it has now been removed from the exceptions, and the owner has the right to demand a free replacement within three years or 100,000 km from the date of purchase. We took advantage of this right at a mileage of 63,000 km.
