How to check and replace high-voltage ignition wires on a VAZ 2114


High-voltage ignition wires of the VAZ 2114 are part of the ignition system, through which an electrical impulse is transmitted from the module to the spark plugs. When the current hits the spark plugs, the fuel mixture ignites in the combustion cylinders, which gives rise to a new stroke of the engine.

The design of the GDP, unlike conventional wires, is quite complex. In addition to the conductive core (which is made of copper) and protective insulation, they have metal tips and plastic protective caps.

Metal tips act as contacts; they fit into the sockets on the spark plugs and the ignition module. The durability of the GDP directly depends on how well the tips are made. When purchasing, be sure to check the strength of their attachment to the wire.

High-voltage ignition wires VAZ 2114 - device

It is important to know: The efficiency of ignition of the mixture directly depends on the quality of the high-voltage wires, which means stable engine operation in different modes.

The classic model of the ignition system for all cars around the world provides for a set of five high-voltage carriers. The central cable supplies high voltage from the ignition coil to the distribution device - distributor. Next, four cables supply voltage to the spark plugs.


Modern cars use an electronic ignition system. The circuit does not change, but additional cables may be added if the flammable liquid is ignited by two spark plugs in each combustion chamber.

The armored wire consists of:

  • conductive copper, graphite or non-conductive twisted conductors;
  • ferroplast shell - insulator;
  • metal wire screen;
  • sealing hard shell;
  • tips on both sides.

Signs of faulty armored wires of the VAZ 2114

The main signs of a malfunction of the VAZ 2114 armored wires are:

  • Difficulty starting the engine;
  • Unstable operation of the engine in idle mode;
  • Increased hydrocarbon content in emissions;
  • Radio interference, which can lead to malfunction of the multimedia system, electronic control unit and other devices

Therefore, in order to avoid lowering your ranking in search engines, a link to the source is required.

As a rule, when there is severe wear on the wire insulation, many microcracks appear, due to which current leakage occurs. As a result, the wire is not able to transmit to the spark plug a current that is sufficient in magnitude for its normal operation. This significantly increases the spark generation time and interferes with the correct operation of the engine cylinders.


Location of the ignition module of the old VAZ 2114

Quite often there are cases when wires are damaged as a result of contact with any engine elements. Situations of loss of cap tightness are also possible, and as a result - oxidation of contacts and current leakage. Regular cleaning of contacts is a mandatory procedure, especially when operating a vehicle in difficult climatic conditions.

When to change?

It is difficult to say when it is necessary to replace them, but there are several reasons for which they need to be replaced. Good wires do not need to be replaced, but to understand whether the wires are good or not, they need to be inspected. When inspected, the wires should not contain:

  • Scuffs;
  • Cliffs;
  • Cracks in insulation;
  • The wire caps must be securely fixed to the spark plug and ignition module;
  • The wires must be elastic and bend easily;

If one of these criteria is noticed when inspecting the wires, they must be replaced with new ones.

Checking high-voltage ignition wires with a multimeter on a VAZ 2114 - step-by-step instructions

Checking high-voltage ignition wires begins with a simple diagnosis, because all of the above symptoms of problems may indicate a breakdown of other parts of the engine system or something else. For a simple check it is better to wait until dark. Then you need to expose a small section of the wire on one side and the other and close one end to the body of the car or battery, and the second is needed for maneuver: we move it along the wiring joints, plugs, and so on. When there is a hole there will be a spark immediately. The result is obvious - replacement is required. But this method is primary; it concerns direct current leakage, which is not always the reason for the non-operating state of high-voltage devices. In the case of voltage, such a number will not work.


Checking the resistance of armored wires of a VAZ 2114 with a multimeter

To measure it, you need to know what resistance the high-voltage wires should have. After all, each wire from a specific manufacturer has its own resistance, technical characteristics and dimensions:

1) Tesla - 6 kOhm, it is often counterfeited, then you can squeeze out as much as 8 kOhm

2) Elephant - from 4 to 7 kOhm

3) ProSport tends to zero

4) Kargen - 0.9 kOhm

For measuring work, you need a simple multimeter, which we switch to ohmmeter mode. We measure one wire at a time, removing one by one from the cylinders from left to right and from the coil itself.

To check the high-voltage ignition wires on a VAZ 2114, you must do the following:

  • Make sure the car is turned off
  • Remove the end of the wire from the fastener on the cylinder
  • Remove the opposite end from the ignition coil mounting
  • You need to connect both ends to the multimeter
  • Reading the readings
  • Write them down so you don't forget
  • We do this three more times with the remaining wires.


Checking the resistance of armored wires of a VAZ 2114 with a multimeter

Expert advice: Normal resistance is numbers in the range from 3.4 to 9.8 kOhm. Of course, all this depends on the manufacturer; this parameter is printed on the rubber skin of the wire. If you have a difference with the permissible value, which varies from 2 to 4 kOhm, this is normal. But no more! If more, then the wires are not suitable for driving, they need to be changed.

BB: what do they look like?

High-voltage wires VAZ 2114

Naturally, the technical conditions for the existence of working wires are the conditions of a permanent conductor. If we add here temperature changes and the imperfection of our world, we get the fact that the contact system fails within a certain period of time. And it comes with a frequency of 30,000 km.

This is a control figure that tells you when to change high-voltage wires. The fact is that over time, internal resistance begins to increase in them, preventing the impulse from passing as it should. In this case, you may notice the following behavior of the fourteenth:

  • You want to press your sneakers to the floor, but the engine doesn’t respond
  • The engine may simply stall
  • At idle the engine troits
  • It often happens that car owners themselves do not notice how high-voltage wires are pierced

Of course, this is not an indicator of a malfunction only in high-voltage equipment, but there is a high probability that it was they who flew. Surely, it is worth carrying out a test procedure for all contacts.

And the tester showed that the wires had a long life. Well, the high-voltage wires on the VAZ 2114 need to be replaced. The procedure, in principle, is not troublesome. If you were able to test them, then you can replace them. The main thing is to understand the order of connecting high-voltage wires.

The fourteenth is an improved version of the nine, it has higher ignition power. Therefore, contacts have been added to the four high-voltage wires for connection to the ignition terminal itself, through which a signal goes to the spark plugs; Also, in the fourteenth system there are contacts leading to the switch, as well as contacts for connecting the adsorber valve to the gasoline injection system control unit.

The procedure for connecting high-voltage wires to a VAZ 2114

The connection diagram for high-voltage wires is quite simple:

  • Cylinder 1 clings to the lower left contact
  • Cylinder 2 clings to the upper left contact
  • Cylinder 3 clings to the upper right contact
  • Cylinder 4 clings to the lower right contact

This is sometimes called module bay interface in schematics. Essentially, everything is correct. The main thing is to understand that all cylinders are counted from left to right, like any count adopted from the logic of writing from left to right: 1,2,3,4. And the connection is obtained according to the following scheme: 1,3,4,2. Many people sketch and write down how the contacts were before removal. But, if you look at the module itself, there are docking numbers there. It's impossible to make a mistake.

Features of choosing VVPZ for VAZ 2114

When choosing a GDP for a VAZ, it is necessary to take into account two key factors - their resistance and breakdown voltage. The lower the resistance, the better the electrical impulse will be transmitted, and the magnitude of the maximum breakdown voltage determines how resistant the high-voltage wires on the VAZ 2114 will be to breakdowns.

The resistance value of products from different manufacturers differs from each other. As an example, we give you the resistance of the most popular types of GDP:

ManufacturerResistance on cylinder No. 1 (kOhm)Resistance on cylinder No. 2Resistance on cylinder No. 3Resistance on cylinder No. 4Breakdown voltage (kV)
Tesla3.274.165.026.2650
Cezar3.13.534.235.3450
Finwhale1.952.182.63.4250
Ween6.176.577.529.8935
Slon4.244.745.197.650

Expert opinion: The products of the Czech company Tesla receive the largest number of positive reviews from the owners of the fourteenth. Their wires have optimal resistance and high breakdown voltage, and at the same time they are truly made to last - they do not tan or crack.

The cost of the Tesla GDP set is about 500 rubles, Cezar – 450 rubles, Ween – 270 rubles, Finwhale – 600 rubles, Slon – 500 rubles.

Briefly about the UMZ 4216 engine

The first experimental batches of engines of this class began to be produced in 2003. Ten years later, power plants began to comply with EURO-4 standards. Despite its age, the technical specification of the product is quite modern:

  • Maximum potential – 106.8 hp.
  • The total volume is 2.89 liters.
  • Maximum thrust – 235.7 Nm. Achieved when the tachometer needle is in the range of 2,000-2,500 rpm.

The manufacturer provided an extended warranty. It was preserved even when HBO was installed on the car. In the basic version, the car uses 92-grade gasoline - this is the main type of fuel. The 95th is recognized as auxiliary - it also does not harm the engine.

  1. Aluminum block with 4 cast iron sleeves.
  2. Four-chamber cylinder head with 8 valves.
  3. ECU - MIKAS with sensors for camshaft, crankshaft, throttle assembly, detonation, absolute pressure.

Replacement and connection of high-voltage ignition wires of a VAZ 2114

Important to know: Incorrect installation and location of high-voltage wires can lead to sparks jumping from wire to wire or to ground, which, in turn, can lead to misfires and a decrease in the crankshaft speed when the car is moving at high speed.

The order of connecting high-voltage wires must be strictly sequential, since each cylinder of the engine corresponds to a specific socket on the ignition module. Considering that there is a numbering of the sockets on the ignition module body, the risk of confusing anything is minimal.


Connecting armored wires to the ignition module of a VAZ 2114

The procedure for connecting high-voltage wires of the VAZ 2114 injection type depends on the year of manufacture of your car. Fourteen cars before 2004 had 4-pin ignition modules installed, and cars after 2004 had 3-pin coils.

OPERATIONAL CHECK

To accurately determine whether it is time to change the high-voltage wires of the VAZ, you need to check their performance with a multimeter.

This operation will take you no more than 15 minutes:

  • Turn off the ignition;
  • We remove the wires: disconnect the first end from the ignition module, the second from the cylinder;
  • We switch the tester to ohmmeter mode and connect the multimeter probes to the wire contacts.

If the high-voltage wires on the VAZ 2114 are in normal technical condition, the multimeter will show a resistance within the value indicated on the wire insulation; if the readings are different, the armored wires on the VAZ 2114 need to be replaced. The process must be repeated on each wire in turn.

If the test shows disappointing results, there is a possibility that the problem of increased resistance lies in oxidized contacts. In this case, you can try to revive the VVP by wiping the contacts with VD-40 or carburetor cleaning fluid.

Also, the cause of problems with ignition can be a breakdown of the GDP. You can determine it visually in the dark - take a flashlight and open the hood of the fourteenth, find and inspect the armored wires, if you notice a slight spark on the insulation - the air intakes are broken and need to be replaced.

Over time, defects may appear in the vehicle's electrical cables - for example, resistance will increase or their insulating properties will be lost. Timely replacement of high-voltage wires of a VAZ 2110 or VAZ 2114 will eliminate these problems, reducing the risk of more serious breakdowns in the future.

Service life of high-voltage ignition wires on VAZ family cars

According to the recommendations of Auto VAZ, replacement of high-voltage wires of the VAZ 2114 should be done every 30 thousand kilometers. In practice, motorists rarely comply with these replacement deadlines, since if the wires do not have any mechanical damage, they can travel about 100-150 thousand km.


Numbering of connection of armored wires to the ignition module of VAZ 2114

When the service life is exceeded, the internal resistance of the GDP increases, which negatively affects the transmission of the electrical impulse. This leads to problems with ignition and acceleration dynamics, since when the supply of current to the spark plugs is delayed, the normal engine operating cycle is disrupted.

BB: professional replacement

If you have decided to contact the service for the process of replacing high-voltage wiring, then it is, of course, a good thing, but not worth the money that will be asked of you. They can also confuse your brain on the topic of how often high-voltage wires need to be changed, with the logic that it is better to take care of prevention in advance than to get stuck on the highway. You won’t get stuck on the highway, the contact is not a sensor, even the last one doesn’t die right away. Replacement will cost from 1000 rubles. The advantage of service in this case will be the fact that they will look at the candles for you. And they will definitely be cleaned (they tend to become oily, which negatively affects the throughput for pulses through high-voltage wires).

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