Which spark plugs to choose for VAZ 2114-15: Brisk, Denso, NGK or others

We choose which spark plugs are best for the 8-valve VAZ-2114: injector and spark plugs for it

In the ignition system of the VAZ-2114, spark plugs are in the leading place, because it depends on them how the engine starts after turning the ignition key. Therefore, it is to this detail, like no other, that much more attention should be paid during selection. And in this article we will tell you in detail about the design of the spark plug for the VAZ-2114, as well as how to choose the right one.

Is there a difference in brands and manufacturers?

There is a difference and it is significant. Before buying new spark plugs, you should once again look at the car’s operating instructions and check which marking is suitable for your car. On a VAZ 2114, replacement of spark plugs can be from either a domestic or an imported manufacturer. For carburetors with contact ignition, the A17DV spark plug will fit with a gap of 0.5 millimeters. For carburetors with a contactless system, the same is suitable, but with a gap of 0.7 millimeters. For those with injectors, the A17DV-10 at 1.3 millimeters is more suitable.

Features and design of the VAZ-2114 spark plug

Bosch spark plugs with white carbon removed from a VAZ-2114

Spark plugs for VAZ cars, and VAZ-2114 in particular, are no different from each other; in the same way, when they receive a 24 kV they generate a spark, thereby igniting the fuel in the combustion chamber. However, the main and most important structural element in each spark plug will be the central electrode, because it will ensure ignition of the fuel at a certain stage of startup.

The electrode must be made of heat-resistant, plastic and corrosion-resistant material.

It is usually made from all kinds of nickel alloys, but models with a more expensive price tag, in order to increase efficiency, can contain palladium, copper, iridium, platinum, silver and even gold. All this, according to manufacturers, was created for easier starting and the acquisition of individual properties of the candle.

When to change spark plugs?

If you want to change the spark plugs, then this issue should be approached extremely carefully and thoroughly, because the efficiency of their operation, overall fuel consumption and the transmitted power from the engine to the wheels depend on this choice.

Numerous tests show that correctly selected spark plugs for a certain type of engine not only extend its overall service life, but also improve its performance.

Breakdown on the spark plug insulator

The manual from the VAZ-2114 states that the spark plugs must be changed every 30,000 kilometers , because after this the wear of the electrodes of the factory spark plugs changes and the car behaves completely differently on the road, due to an increase in fuel consumption and a decrease in power.

The condition of the spark plug and the ignition system can be determined with confidence by its appearance, depending on the condition of the electrode (presence of soot, soot, color - approx.).

Visual inspection of spark plugs

This table will help you roughly find out what kind of soot it is:

Candles with different types of soot

Myth No. 3 Extending the life of spark plugs

If you think logically, the quieter we drive, the longer the service life. In practice, things are a little different.

There is a concept called “self-cleaning spark plugs.” This means that at high speeds, the engine cleans the spark plug of carbon deposits, which prolongs its service life. You also need to periodically check the gap in the spark plugs. It must meet the factory requirements of both the spark plug itself and your car. Therefore, always buy the correct spark plugs. Do not fill the spark plugs, especially in winter - let the engine warm up, only then start driving.

So, let's summarize a little. How often to change spark plugs:

From 20,000 km and above, if the spark plugs work normally.
10,000 km - if you want to save on fuel. In winter, you need to let the engine warm up, and from time to time you need to check the gaps on the spark plugs. At the same time, don’t forget to carry an extra set of candles with you, and then everything will be fine.

Source

Which spark plugs are best for the VAZ-2114 (survey)?

Today, the choice of spark plugs is very large, and choosing the ones that need to be installed is not so easy. On most forums, owners of VAZ-2114 cars are most often advised, “Finwhale” “Champion” “Brisk Premium” “Bosch Platinum”, “DENSO”.

Remember that the best spark and the greatest amount of heat will be given by the spark plug that has the thinnest electrode, 0.4-0.8 mm in size, and they are usually made from alloys of iridium, platinum, palladium and gold.

Also, the situation with a spark that has a coating of platinum, silver or gold on its body has the best effect. For comparison, the “stock” spark plug from DVRM has a thickness of 2.5 mm, while on imported analogues it barely exceeds 0.6-0.8 mm, so there is no point in talking about any competition here.

Video about how to avoid falling into fake candles

Pay special attention to the integrity of the packaging, as well as the cost of the goods, because counterfeits, which are quite common today, can be sold at a discount from the average market price. Therefore, always remove each candle from its individual box and inspect it more carefully.

Measuring the gap and correcting it

Before you start adjusting the clearance value, you should first measure it accurately. To do this you will need a tool such as a probe. They are sold in the form of a set of thin steel plates with a precisely known size, mounted on one axis (like a folding knife).

The gap of the spark plugs of a VAZ 2114 injector 8 valves is measured according to the following scheme:

Disconnect high-voltage wires.
Select a feeler gauge with a thickness of exactly 1 mm and insert it into the gap.
If it enters with little force, but is slightly pinched between the output electrodes, then the gap is correct.
If the probe passes easily and does not encounter resistance, then the gap is large and you should take a larger probe.
If the measured clearance is more than 1.15 mm, then it will have to be adjusted.
The same applies to the situation when a 1 mm feeler gauge does not fit into the gap at all.

If after measurements it is discovered that the electrodes are too far apart, it will be necessary to bring them closer together. To do this, you will have to slightly bend the upper electrode and repeat the measurements again (and so on, until the required gap is achieved). If the gap turns out to be small, then the upper electrode, on the contrary, will need to be slightly bent upward.

It is important to remember that you cannot apply too much force to the spark plug electrode. It can break off very easily, and then there will be no choice but to completely replace the spark plug with a new one.

It should also be noted that the gaps on the VAZ 2114 injector spark plugs should be checked even after purchasing them in a store. After all, sometimes even spark plugs that have just arrived from the factory already have the wrong clearance value.

Spark plug manufacturers

Below, we will present each spark plug manufacturer separately to make it easier for you to choose.

A-17DVRM

Candles that are installed directly from the factory.

Reliable spark plugs that have proven themselves in operation.

Optimal price-quality ratio.

Before buying spark plugs, ask the seller to check them on a special stand for the presence of a spark and no breakdowns.

Signs of faulty spark plugs

Signs of faulty spark plugs can include many different factors, which will be similar to problems in the fuel supply, problems with the ignition module and high-voltage wires.

It is necessary to check the spark plugs if the following signs of malfunction appear on your car:

The engine is running rough (one of the cylinders is not working);
The car's dynamics disappeared;
Difficulty starting the engine;
Fuel consumption has increased;

In what cases is it necessary to replace spark plugs?

Replacement of SZ with VAZ 2115 and VAZ 214 is carried out every 30,000 thousand kilometers. If you do not change the SZ in time and continue to operate the car, then the wear of the electrodes sharply increases, this entails a drop in the car’s power and excessive fuel consumption. The condition of the spark plug and the ignition system as a whole can be determined based on the appearance of the electrode, the amount and color of carbon deposits on it. Brown soot is considered normal.

With long-term operation, the operating characteristics of the motor change. If you carefully monitor the operation of the internal combustion engine, then based on fuel consumption you can draw conclusions about the condition of the engine. Knowledgeable people recommend changing spark plugs on VAZs after 20 thousand kilometers, and in winter even after 15 thousand.

You can judge the need to replace SZ by their appearance, more precisely by the amount and color of carbon deposits, as well as the gap between the electrodes.

In addition, the dryness of the threads should be checked. If there are traces of oil on it, this indicates problems with the tightness of the system.

To summarize, we can cite cases when it is necessary to change the SZ:

the car does not start well;
fuel consumption has increased;
the engine starts to stall;
engine power decreases;
exceeding the recommended mileage for replacement.

When is it time to replace the spark plug?

The operating interval of one set of spark plugs is usually designed for fourteen to twenty thousand kilometers. Although, the deadlines that manufacturers set are much longer - thirty thousand kilometers. Perhaps such a significant difference in numbers was due to the large number of counterfeit products on the modern auto parts market. And, nevertheless, if you trust the opinion of experienced car owners, then it is better to carry out the replacement procedure early rather than late.

What troubles can they bring in used condition:

Gasoline consumption will increase significantly.
The cost of operating a car will increase.
Starting a cold engine will become difficult and take a long time.
There will be misfires.
Engine operation will no longer be stable.

Helpful advice: often thrifty drivers put off buying and replacing spark plugs. This is mainly done for reasons of economy. But, as you already know, when they are heavily worn, gasoline consumption increases significantly and visits to the gas station become more frequent. Don't get carried away by the illusion of savings; replace regularly.

If your car has managed to accumulate an impressive mileage on one set of spark plugs, and the car’s traction has begun to weaken, then your VAZ 2114 needs to replace the spark plugs.

What candles should I put?

Choosing candles is a responsible matter. The service life of the engine, its power, fuel consumption, and successful starting depend on their quality.

When choosing, the greatest attention should be paid to the central electrode, such indicators as: heat resistance, thermal conductivity and ductility.

The best products are candles in which the smallest gap is 0.4 -0.8 mm, made of expensive materials: platinum, iridium, palladium coated with silver or gold (video author - Avtosferaomsk).

It is important to understand what kind of spark plugs are produced for the VAZ 2114. When choosing a new product, you need to study its characteristics in order to choose which spark plugs are better. A large number of SZ manufacturers have appeared on the car market, but there are several leaders whose products are in greatest demand. SZ must work synchronously, so you need to buy them from the same manufacturer and from the same material.

Domestic manufacturers include DVRM candles, produced in the city of Engels. They are installed on VAZs from the factory. The quality of the products corresponds to the price, but there are defects, so when purchasing they need to be checked for serviceability. Products A-17DVRM (1.0) are produced for engines with injector 8 and A-17DVRM (1.0) for 16 valves.

Domestic SZ A-17DVRM

Among imported products, good Czech Brisk candles. They are in demand due to their good quality. 10 series of these products are produced, differing in design. They have a clearance of 1.1, there is an SZ for 8 valve injection engines - BRISK SUPER FORTE LOR15YC-1 and for 16 valve BRISK SUPER FORTE DOR15YC-1.

Japanese products are always of high quality. These spark plugs are installed on some brands of cars directly at the factory. They have a higher price, but also have corresponding quality. When purchasing, you should beware of fakes, as there are a lot of them. For engines with 8 valves with an injector, DENSO W20TT is intended, for engines with 16 valves - DENSO W20EPR-U11.

NGK is a leading manufacturer of SZ. They are installed by manufacturers on some brands of foreign cars. As a car enthusiast, I claim that spark plugs last an average of 25-30 thousand kilometers. For engines with a 16-valve injector, NGK spark plugs No. 13 BPR6ES-11 are produced.

DIY replacement instructions

Replacing spark plugs on VAZ 2114 and 2115 is not a complicated process. This work can be performed by any motorist, following the step-by-step instructions given below.

Tools and materials

To carry out the procedure you need to prepare:

key for removing protection;
a set of round probes;
spark plug key;
new set of SZ.

To avoid counterfeiting, you should purchase original products.

The process of dismantling and replacing SZ

The procedure for removing and replacing spark plugs should be carried out on a cool engine to avoid burns.

The process itself consists of the following steps:

First you need to open the hood. Then you need to remove the protection from the engine, if present.
After removing the decorative trim, you need to remove the protective caps with high-voltage wires that are placed on the contacts. The caps should be removed carefully so as not to damage the wiring.
The areas near the NW should be cleared of dirt so that they do not get into the engine cylinders.
Now, using a spark plug wrench, you need to unscrew the S3 from the cylinder head. You can start twisting from any side. First you need to move it from the dead center, and then you can carefully unscrew the SZ from the socket.
Having turned out the old SZ, you need to wipe the thread with a rag.
Before screwing in new products, it is advisable to check the gap on each of them. For cars with an injector, it should be from 1 to 1.13 mm.
Installing the SZ is the same simple procedure as unscrewing; it is carried out in the reverse order. New products are placed in the seats of old candles. You need to screw it in carefully so as not to damage the threads in the cylinder head or on the product.
Next you need to put on the ends of the high-voltage wires. In this case, you need to make sure that the numbers of the wires that are printed on them match.
At the final stage, the decorative overlay is returned to its place.

After replacing the SZ, it is necessary to observe how the engine operates. If it works intermittently, it is possible that one of the SZ has defects. To detect it, you need to sequentially disconnect each high-voltage wire. A faulty spark plug should be replaced.

Price issue

High-quality products always cost more. Domestic products are several times cheaper, but the quality leaves much to be desired. Therefore, it is worth buying imported candles that will last much longer than domestic ones. At the same time, the service life of the engine will be extended, and fuel will be consumed more economically.

Replacement procedure

We turn off the engine and be sure to wait until it cools down;
Raise the hood lid and fix it in the open position;
If your engine capacity is 1.6 liters, then you will have to unscrew the fasteners and remove the plastic cover (owners whose engine capacity is below 1.6 liters do not face this procedure, because they do not have this plastic cover on their car);
We pull out the high-voltage wires using the rubber caps;
We remove the resulting dirt and carbon deposits with a brush;
We unscrew the spark plug by placing a spark plug wrench on it;
We repeat the same steps with the remaining old candles;
The new spark plug should be inspected again, the gap between its electrodes should be checked;
First, we tighten the new part by hand, not with a tool, this will protect the thread from breaking if the installation suddenly turns out to be incorrect;
We continue the twisting procedure, but with a tool;
We reconnect the high-voltage wires we removed earlier (the explosive contacts should fit snugly in the spark plug).

Attention! A common mistake for novice car enthusiasts. Each spark plug has its own high-voltage wire. Under no circumstances should they be confused. The wire must be connected to the cylinder in series, following the marking rules.

You should not tighten the parts with special frenzy; their threads can be seriously damaged by rough forceful movements.

Spark plugs for VAZ 2113/2114/2115

VAZ 2113, 2114 and 2115 (Samara-2 series) are very similar in design, have a common platform and are equipped with the same engines - 1.5 (VAZ-2111, 77 hp) and 1.6 (VAZ-21114, 82 hp . or VAZ-11183, 81 hp).

Spark plugs for VAZ 2113/2114/2115 do not differ in any way depending on the configuration, year of manufacture of the car, or the installed engine. The same spark plugs are installed on all 3 cars. The original manufacturer is the Russian company “E3”, Engels. What is noteworthy is that the production facilities of this company belong to Bosch. Spark plugs for VAZ 2113, 2114, 2115 – which ones to install?

On VAZ 2113/2114/2115 with 1.5 and 1.6 liter engines, spark plugs should always be placed under article number 21110-3707010-86. It is also found under other numbers - 21110-3707010-00 or 2111-3707010. In fact, these are all the same spark plug. In the manufacturer's catalogs it has the article number A17DVRM. This spark plug has a central nickel electrode, single-contact, short thread, tightening torque - 22 Nm.

The dimensions of the original spark plug are shown below.

Thread / thread length, mm	Key size	Gap, mm	Heat number*	Center electrode material
M14x1.25 / 19	21	1	17	Nickel

* according to Champion nomenclature (Russian standard)

Original candles, as a rule, are usually sold in branded packaging from LADA. Less often you can find them directly from the manufacturer - the Engels plant. They come from the manufacturer a little cheaper. The reviews from most drivers about this spare part are positive, and there are not too many fakes on the market, due to the fact that they do not have a very high price.

What analogues are there?

The most famous substitutes for the originals from other manufacturers are presented below.

Manufacturer	vendor code	Price, rub (for 1 piece)
Bosch	0242235663	100
Denso	W20EPR-U	100
NGK	BPR6ES	140

In addition to conventional (nickel) analogues, more modern platinum or iridium spark plugs are also somewhat popular. They are installed to achieve a slight improvement in the dynamic characteristics of the engine. This is achieved thanks to a thinner electrode than nickel models. In addition, they last several times longer. For VAZ 2113, 2114 and 2115, the most popular are platinum Bosch 0242235540 at 200 rubles/piece, or iridium DENSO IW20TT, 610 rubles/piece.

When to change spark plugs on a VAZ 2113/2114/2115?

According to the maintenance regulations for VAZ 2115, 2114 and 2113, spark plugs must be changed every 30 thousand km. But, as the experience of drivers shows, this period needs to be reduced by half on average, and in fact, replacement needs to be done every 15 thousand km. This is influenced by many factors, the main ones being fuel quality and operating conditions.

What advantages are we talking about?

Manufacturers claim, and their words are confirmed by the results of bench tests conducted by practitioners, the following advantages of iridium spark plugs:

Improved cold start. Thanks to the central electrode being almost twice as thin, the sparking voltage required is much lower. This ensures the formation of a high-quality, powerful spark, which is especially important under operating conditions in the northern regions of the country, where morning temperatures drop to -40°C and below. When starting under such conditions, it is important to ignite the air-fuel mixture in the first seconds, before the spark plugs are filled - iridium spark plugs do an excellent job of this task.
Stable engine operation at idle speed. When the engine is running at idle speed, better ignition of the lean air-fuel mixture is ensured, which solves the problem of “floating” speed, which often occurs when using conventional spark plugs.
Increased engine efficiency. According to some experimental data, the use of iridium spark plugs can increase engine performance by 5-10%.
Reduced fuel consumption. An increase in engine efficiency in approximately the same proportion leads to a decrease in fuel consumption, which is natural.
Reducing exhaust toxicity. As mentioned above, iridium spark plugs allow you to get a more powerful and high-quality ignition spark in all engine operating modes. In this case, more efficient ignition and combustion of the air-fuel mixture occurs. As a result, the content of toxic substances and CO2 in vehicle exhaust gases is reduced.
Increased resource. Since the central electrode of the spark plug is made of iridium, the rate of burnout of the electrode during operation is extremely slow. With proper operation, absence of mechanical damage and using high-quality fuel, the service life of an iridium spark plug can be 100-120 thousand kilometers . Manufacturers, as a rule, claim an even longer service life, but Russian practitioners recommend replacing them no later than 100-120 thousand kilometers. This is undoubtedly an excellent indicator, since the resource of ordinary spark plugs, for example, is only 20 thousand kilometers.
Economic feasibility in some cases. On some V-engine models, access to the spark plugs can be extremely difficult. In fact, carrying out such a simple procedure as replacing spark plugs is impossible without visiting a service station, and this is an additional expense, often quite high. Installing candles with an increased resource is an excellent solution to this problem.

Domestic or imported spark plugs

Among the most popular candle manufacturers, there are several leaders who are in high demand and have proven themselves to be the best.

Spark plugs DVRM Engels

These spark plugs are installed by the manufacturer off the assembly line and are an excellent option for the money. However, according to reviews from car enthusiasts, there is a defect. Therefore, when choosing these spark plugs, you should immediately check them before installation.

A-17DVRM (1.0) engineer. 8-cl - spark plugs for injection 8-valve engines.
AU-17DVRM (1.0) engineer. 16-cl - spark plugs for injection 16-valve engines

Brisk candles Czech Republic

Brisk candles, which are of good quality and have proven themselves on the positive side, are in high demand. Brisk has 10 series of spark plugs, differing in design and intended for different types of engines, not only in cars, but also in motorcycles.

Spark plugs BRISK SUPER FORTE LOR15YC-1 for 8 valves
Spark plugs BRISK SUPER FORTE DOR15YC-1 for 16 valves

The gap for both types of spark plugs is 1.1

DENSO spark plugs

The Japanese quality of candles needs no introduction. These spark plugs are installed by manufacturers on some imported cars. Judging by the reviews, these are quite good candles from a higher price category than the previous ones. However, you should be wary of fakes, which are now available in abundance.

DENSO W20TT spark plugs - for 8 valve engines
Spark plugs DENSO W20EPR-U11 - for 8 valve injection engines

NGK spark plugs

One of the leading companies in the production of spark plugs, glow plugs and other automotive components. The candles are of excellent quality and are installed on production lines of such manufacturers as Nissan, Mazda and others. Judging by the reviews of car enthusiasts, the NGK spark plugs installed on their cars lasted an average of 25-30 thousand km.

Spark plugs NGK No. 13 BPR6ES-11 for 8 valve injection engines. Cost 450-500 rubles per set

Before installing new spark plugs, you should check their functionality. This can be done using a special device, or on a stand.

NGK 7529 BP6E

The spark plugs are universal and work across the entire range of temperatures and loads. They are resistant to the formation of deposits on the insulator, maintain the shape of the electrodes and the size of the gap. V-line technology ensures uninterrupted sparking. The copper rod in the central electrode removes heat, preventing overheating and damage to the insulator. The sealing of the housing is adequately done, the tightness is always at its best.

The gap for these spark plugs is 0.9 mm. This means that it is better not to use the product for a carburetor engine, only an injector.

The price for such quality is attractive and does not go out of the general range in the category.

The cost of candles is, on average, 150 rubles per piece.

Advantages and disadvantages

Good engine starting in any weather. Sparking without interruption due to the use of new technology. Excellent tightness. Compliance price/quality.

There are often fakes on the market

How to check spark on a spark plug

If you experience unstable engine operation, it begins to “triple”, it is quite possible that the time has come to replace the spark plugs, or the PVN, or the ignition module needs to be replaced. So, first, let's check the spark plugs, most often they are the cause.

We remove the PVN tips from the spark plugs
Unscrew all 4 spark plugs (you will need a 21 key)
We put the tip on the spark plug and lean it against the metal (possibly against the body of the engine block)

Attention! The spark plug is under high voltage at this moment, so it is better to hold it with pliers or something similar

We start turning the starter and look at the spark plug, if there is a spark, then the spark plug is working. We do the same actions with other candles.

After replacement

Unpleasant surprises can await car owners even after old ignition parts are replaced with new ones. This can happen if the store sold you a bad, faulty spark plug. In this case, the engine jerks and runs intermittently. Naturally, the defective part must be replaced again. And in order to determine which one is faulty, you will have to disconnect the explosives one by one. When the wire with a faulty spark plug is disconnected, no changes in engine operation are observed.

Replacing spark plugs on a VAZ 2114

Replacing spark plugs on a Priora

Welcome! A spark plug is a very important, although small in size, thing that is needed to ignite the fuel-air mixture in a car engine cylinder; in simpler words, thanks to them, the car drives and if you unscrew them, you will no longer start it, because the mixture they ignite will not ignite and therefore the engine will not start.

Note! In order to replace spark plugs on a Priora (And they are located in completely different places, unlike 8 valve engines), you will need to stock up on: A set of wrenches, as well as the spark plug wrench itself, which comes specifically for the car and you will need all this the probe with which you will check the spark plugs for the gap that they have set, if the gap at the electrodes of the spark plug is too small (a defective spark plug, but it can be made normal using this very probe) then you will need to adjust it and thereby return it to the correct one clearance at which the engine will operate normally, confidently and not stall!

Replacing spark plugs
Additional video clip

Where are the spark plugs located? The spark plug in 16 valve engines, in contrast to 8 valve engines, is in a radically different place; they still continue to be screwed into the cylinder head, but only in 16 valve vehicles they are screwed in from above, while on 8 valve engines they are clearly visible from the side, for clarity, a little Below you can look at the photo, in which the arrows indicate the four ignition modules under which the spark plugs are located.

Note! But you won’t see a picture like the one above on your car, since the engine of a 16-valve car is always closed from above with a so-called screen (Indicated by a red arrow), you will have to remove this screen and only after that you will be able to get to the ignition modules, and only after that modules, right down to the candles themselves! (You will learn how to remove this screen a little later as you read this article)

When should you change spark plugs? The spark plugs must be replaced if the car’s engine starts to stall, that is, when tripping, the engine will twitch, it will also have difficulty picking up speed and in general it will be noticeably worse to drive, in addition, if the spark plug is faulty, the engine will start even worse.

These are all signs, but what about the recommendations given by the manufacturer, you ask? Let's look at this in more detail! According to the factory's recommendations, if the spark plugs are the most common and their electrodes consist of copper or yttrium, then they need to be changed at intervals of 30,000 thousand km, because they burn out quickly, but if you use spark plugs whose electrodes are coated with platinum or iridium, then You will have to change such spark plugs much less every 60,000 thousand km, and all because platinum is more resistant to high temperatures and, in addition, it is resistant to corrosion of the spark plug electrodes, where it is used!

WHAT ARE CAR CANDLES

A spark plug is a small part of a car engine that creates an electric spark that ignites the fuel-air mixture. Using a spark, it creates a mini-explosion in the cylinder, due to which the piston begins its movement. The number of such mini-fuzes in . Ordinary business class cars, and in particular cars, have four-cylinder engines, which means there are 4 units installed in it. But there are elite class cars or sports cars. They have six- to eight-cylinder internal combustion engines, respectively, 6-8 pieces are installed.

Let's consider spark plugs. As mentioned above, 4 pieces are installed in the VAZ internal combustion engine. Each consists of a nickel housing, a contact rod protected by a ceramic insulator. A spark occurs when the central and side electrodes come together.

It is important that everything is synchronized, which means that they must be from the same manufacturer and the same brand, that is, from the same materials. It is not advisable to replace one or two spark plugs. If it’s time to change, then it’s better to have all 4 at once.

Types of ignition systems

The very first one. contact system, which was applied to the VAZ 21074. The basis of this is a mechanical ignition distributor (distributor). The formation of a spark occurs when the contact group is closed in the body of the springboard. And only after sparks are distributed on the glass does it appear on the VAZ candles. This system is obsolete due to the presence of contacts.

Bosch is famous for its high quality products

More progressive is the non-contact ignition system, which was applied to the VAZ 21074 towards the end of the last century, when the carburetor was replaced by an injector, reliable and durable. The same spreader, only instead of a contact group. Hall sensor, which reacts to the passage of a cylindrical metal plate with slots next to it.

Read

The system is controlled by a switch that amplifies the signal from the Hall sensor and feeds it to a high-voltage coil. From the coil, through a distributor with a runner, it reaches the spark plugs, sometimes spark plugs on a VAZ 2107 for a new one.

Which spark plugs are best for a VAZ 2114 injector with 8 valves?