Pinout, wiring diagram and checking the ignition coil of a vaz. Contact ignition system Ignition coil connection zaz

On VAZ 2101 cars, a contact battery ignition system is installed. The task of this system is the timely supply of a spark to the engine cylinders to ignite the fuel mixture.

It includes an ignition coil, in which a high-voltage pulse is formed, a distributor-breaker (aka distributor), which distributes the impulse to the cylinders, spark plugs that provide a spark in the cylinders, an ignition switch that turns on and off the power supply to the coil, the battery is a source of electricity , conventional wiring and high voltage wires.

1-Ignition switch, 2-Ignition coil, 3-Ignition distributor, 4-High voltage wires, 5-Candle, 6-Capacitor, 7-Battery, 8-Voltage generator, 9-Distributor rotor, 10-Cam fur., 11 - Breaker contacts

Ignition coil

The coil is sealed with an open-type magnetic circuit, inside it is filled with oil for transformers. Its model is B.117A. The body of this element is aluminum, the top is hermetically sealed with a plastic cover.

Designation names

1.	Ceramic insulator	10.	Housing
2.	Housing	11.	Power supply terminal
3.	Insulating special paper	12.	Contact spring
4.	Primary winding	13.	Primary housing
5.	Secondary winding	14.	External insulation primary windings
6.	Insulation	15.	Mounting clamp
7.	Primary terminal windings	16.	External magnetic circuit
8.	Pin screw	17.	Core
9.	Center wire terminal

The VAZ-2101 ignition coil is essentially a two-winding transformer:

primary winding for 300-400 turns (wire cross-section - 0.7-0.8 mm.),
secondary winding - for 20-30 thousand turns (wire cross-section - 0.1-0.7 mm).

The principle of the coil

When the distributor contacts are opened, the magnetic flux generated by the battery drops sharply. Passing through the magnetic circuit and the windings, the electromagnetic flux creates a self-induction EMF of 200-300 V on the primary winding and over 10 kV on the secondary. The voltage from the secondary winding is applied to the spark plugs to create a spark.

Distributor

On VAZ 2101 models until 1980, a distributor (distributor) of the R-125B model was used. Its peculiarity was the absence of a vacuum regulator, there was only a mechanical-type octane corrector, which made it possible to slightly change the ignition timing (OZ).

Starting in 1986, together with the installation of the Ozone carburetor, a distributor equipped with an OZ vacuum regulator (model 30.3706), the design of which is described below, began to be installed on VAZ engines.

Model 30.3706 consists of a distributor, a breaker and two regulators - centrifugal and vacuum.

The distributor ensures the distribution of the coil pulses among the candles in accordance with the operating procedure of the power plant.

It consists of a rotating rotor and fixed segments located in a plastic cover. There are two contacts on the rotor - a central one and a side one, between them there is a noise suppression resistor. From above, a graphite electrode is pressed against the central contact; for better contact, the clamping is carried out by a spring.

The distributor works like this:

the voltage from the secondary winding is applied to the rotor, then through a spark gap of about 0.5 mm it enters one of the segments of the distributor cover, then through high voltage wires to the candle, which ensures the appearance of a spark.

The breaker ensures the opening of the electrical circuit at the right time. Its design includes a cam washer with edges and a contact stand. The faces of the cam washer are specially shaped to achieve quick contact opening, smooth closing and no rattling.

The cam rotates, alternately closes and opens the contacts, thereby interrupting the voltage supply to the primary circuit of the coil.

The breaker and distributor must work synchronously with the crank mechanism. To ensure synchronization, the cam washer and rotor are located on the same shaft and are driven by the camshaft.

Centrifugal regulator - provides a change in the OZ angle in accordance with the revolutions of the knees. shaft.

A plate with movable weights is welded to the top of the cam sleeve. With increasing knee revolutions. due to centrifugal force, the weights move apart, turning the plate together with the cam in the direction of shaft rotation. This ensures an earlier opening of the contacts (an increase in the OZ angle).

Vacuum regulator - adjusts the OZ angle depending on the load of the power unit and the position of the throttle valve.

It is attached to the distributor and includes a body and a cover. The body is divided by a plastic membrane into two cavities, one of the cavities is connected to the throttle space in the carburetor, and the other to the atmosphere. The diaphragm can act on the breaker by means of a thrust.

With a decrease in the load, the filling of the cylinders with a combustible mixture and the pressure during ignition decrease, and this requires an increase in the OZ angle. For this, the diaphragm bends (under the influence of a pressure difference) and turns the breaker to the desired angle.

Spark plug

On the VAZ-2101, Soviet candles of the A17DV brand were used, but now, when the market is filled with high-quality brands of foreign production, you can easily choose candles with much better characteristics, the main thing is not to fall for a Chinese counterfeit.

Design features of candles

The length of the threaded part of the candle is 19 mm, with a pitch of 1.25. The hexagonal part (for a spark plug wrench) is made with a size of 20.8 mm.

The permissible gap between the spark plug electrodes is checked with a feeler gauge. According to the book with a contact system, the gap of the VAZ 2101 candle must correspond to 0.5 - 0.6 mm.

Ignition lock VAZ 2101

Includes a case with a locking mechanism, an anti-theft mechanism and a contact part.

If the lock mechanism or anti-theft mechanism breaks down, the lock is completely replaced. The contact part is fastened with a retaining ring in the housing, and in case of a malfunction it can be replaced separately.

Accumulator battery

A battery of any brand with standard parameters is used, namely 6CT - 55Ah, which means:

6 - the number of batteries (cans) connected in series,
ST - starter,
55Ah - battery capacity.

Video - Contact ignition system

An ignition coil is a transformer whose work is aimed at increasing the direct current. Its main task is to generate high-voltage current, without which it is impossible to ignite the fuel mixture. The current from the battery flows to the primary winding. It consists of a hundred or more turns of copper wire, which is insulated with a special substance. Low voltage (twelve volts) is applied to the edges. The edges are brought to the contacts on its cover. On the secondary, the number of turns is much higher (up to thirty thousand) and the wire is much thinner. A high voltage is created on the secondary (from twenty-five to thirty thousand volts) due to the thickness and number of turns.

It is connected like this: the contact of the secondary circuit is connected to the negative contact of the primary, and the second contact of the winding is connected to the neutral terminal on the cover, it is this wire that is the high voltage transmitter. A high-voltage wire is connected to this terminal, the other end of which is connected to the neutral terminal on the cover. To create a large magnetic field strength, an iron core is located between the windings. The secondary winding is located inside the primary.

Structurally, the ignition coil consists of the following elements:

Insulator;
Housing;
Insulating paper;
Winding (primary and secondary);
Insulation material between windings;
Primary winding terminal;
Contact screw;
Central terminal;
Cap;
Output terminal on the primary and secondary windings;
Spring of the central terminal;
Primary winding frame;
External insulation on the primary winding;
Mounting bracket;
Outer magnetic circuit and core.

So, briefly about the principle of work.

A high voltage current arises on the secondary winding, and at this moment a low current flows on the primary. Thus, a magnetic field arises, as a result of which a high voltage current pulse appears on the secondary winding. At the moment when it is necessary to create a spark, the contacts of the ignition breaker open, and at this moment the circuit on the primary winding opens. A high-voltage current flows to the central contact of the cover and rushes into the contact, near which the slider is located.

The connection diagram is quite simple for a specialist, but it is easy for a beginner to get confused in it.

When connecting the coil to the car's ignition system, in principle, you should not have any difficulties, in the event that, during preliminary dismantling, you indicated or remembered which wires are connected where. If you have not done this, then I will tell you how to do it. The connection is made as follows: a brown wire must be connected to the positive terminal. Usually, the positive terminal is indicated by "+", but if you do not see the sign, then you need to find it yourself.
To do this, you can use an indicator screwdriver. I think you know how to use it. It is important, before connecting, clean all contacts and check the wires for serviceability. Black wire is connected to the second terminal (terminal "K"). This wire is connected to the voltage distributor (distributor).

Several elements are connected as follows. One end of the coil is connected to the on-board network. The second end is connected to the next, and thus each is connected to the last. The remaining free contact of the last coil must be connected to the distributor. And a common point is connected to the voltage switch. After all mounting bolts and nuts are well tightened, the replacement is complete.

A few important tips before replacing and connecting. In the case when you have determined for yourself that the coil is the problem of the ignition malfunction, it is better to immediately purchase a new one and connect it (the diagram is indicated above). So you will definitely be sure that now there are no problems with it, since it is completely new.

If you find any defects on the surface, it is better to replace it immediately. Otherwise, it will work for a while and you will have to return to this topic again. It is better to play it safe in advance so as not to stop somewhere on the road. After all, car ignition requires unforgiving mistakes and negligence.

During car repairs, especially when it comes to the ignition system, you must be extremely careful in your actions. As you can run into high voltage wires. Therefore, when carrying out replacement or repairs, you must follow the safety rules.

Video "Ignition coil connection diagram"

The recording shows how you can connect the coil yourself.

MineAvto.ru

How to connect the ignition coil by yourself?

If there is enough free time, domestic motorists often prefer to repair their "iron horses" on their own. In this regard, the vehicle ignition system is no exception. Experienced motorists know how to connect the ignition coil on their own, without the help of specialists from the maintenance salons.

However, such works do not have a very high level of complexity. However, as practice shows, when carrying out repair work on the vehicle ignition system related to the repair of the inductor, even experienced car owners often forget about the wires with which insulation color to which terminals must be connected. In the future, this can cause certain difficulties during installation.

Step by step instructions - how to connect the ignition coil with your own hands:

1. First of all, it is necessary to remove the failed inductor. Further, a new ignition coil is installed in the vacant space. There is nothing complicated in this process, however, many motorists, when installing a new element in the engine compartment, can be confused by the following: what color wire should be connected to which terminal.

2. For those car owners who have not yet been able to remember exactly what color of wire to which terminals to connect, just in case, recall: a brown wire with insulation is always connected to the "+" terminal of the ignition system coil - it must come from the ignition switch.

3. Accordingly, a black-insulated wire must be connected to the “K” terminal - it connects the inductance coil and the terminal of the breaker-distributor of the car's ignition system.

4. The last step: carefully tighten the nuts on the coil and distributor terminals. The ignition coil has been connected and your vehicle is again ready for further use.

autoremka.ru

Contact ignition system

Almost all classic models traditionally have a standard contact-type ignition system (KSZ). An exception is 21065, which uses a non-contact transistor circuit, in which the break of the primary winding power supply circuit is implemented using a breaker mounted in the distributor. Below we will consider in more detail how the VAZ-2106 contact ignition system is arranged and works.

Contact ignition system device

The following components are included in the ignition contact circuit design:

lock (switch);

coil (short circuit);

breaker (MP);

distributor (MR);

regulators, centrifugal and vacuum (CR and VR);

candles (SZ);

high-voltage wires (VP).

An ignition coil (SC) with two windings allows a high current to be obtained by converting a low voltage.

A mechanical interrupter (MP) is structurally made together with a mechanical distributor (MP) in one housing - a distributor. It provides opening of the primary short circuit winding.

A mechanical distributor (MP) in the form of a rotor with a contact cover distributes current to the candles.

The centrifugal regulator (CR) allows you to change the advance angle (UOZ) in proportion to the crankshaft speed. Structurally, the CR is made in the form of two weights. In the process of rotation, they act on the movable plate, on which the MP cams are located.

The vacuum regulator (VR) makes adjustments to the value of the lead angle (VOZ) depending on the load. When the position of the throttle valve (DZ) changes, the pressure in the cavity behind the DZ changes. BP reacts to the degree of vacuum and adjusts the value of the SPL.

Principle of operation and diagram of the contact system

The VAZ-2106 contact ignition system works according to the following scheme. When the contacts in the breaker are closed, a low current flows into the primary short-circuit winding. When the contacts are opened, a high current is indicated in the secondary short-circuit winding, which is transmitted through high-voltage wires first to the MR cover, and then distributed to the candles.

An increase in crankshaft speed leads to an increase in the rotational speed of the CR, the weights of which diverge to the sides under the action of centrifugal forces. As a result, the movable plate moves, increasing the SPL. Accordingly, with a decrease in revolutions, the lead angle decreases.

The contact transistor ignition system is a modernized version of the classic scheme, which uses a transistor switch (TC), included in the primary circuit of the short circuit. Such a constructive solution allows to significantly increase the service life of the distributor contacts by reducing the current of the primary winding.

Checking the ignition system VAZ-2106

Have a Phillips and flathead screwdrivers, test light or tester, rubber gloves and pliers ready. Before checking contact ignition, apply the parking brake or install the pads under the wheels of the car.

First, carefully check the integrity of all elements of the system, as well as the reliability of the connection of high-voltage wires in all areas. They should fit snugly into their respective pins.

Turn on the ignition and check the current flow to the system. To do this, connect one wire of the lamp or tester to ground, and the other to the "+ B" contact of the coil. The lamp should be on, and the tester should show a voltage of more than 11 V. Turn off the ignition.

To test the high-voltage wire, put on rubber gloves and pull the center wire out of the distributor cover. Install a working candle in the cable end, and then press it against the ground with a metal part. Turn the crankshaft on with the ignition on. If at the same time there is a discharge on the candle, then the wire is in good order. In the event that there is no spark, you need to look for the cause of the malfunction in the distributor.

To check the operation of the distributor, remove the cover and inspect it for any damage, as well as the integrity of the carbon contact. If any defects are found, replace the cover with a new one.

Look at the distributor rotor. The runner must not be damaged in any way. Sometimes the rotor body can punch to ground. Also check the functionality of the noise suppression resistor installed in the rotor. If in doubt, it is recommended to replace the rotor.

After that, it is necessary to check the presence of a gap between the contacts of the MP. First, set the crankshaft with a special wrench in a position in which the upper end of the cam of the distributor shaft will be exactly in the center of the textolite pad of the rotary contact lever. Measure the gap between the contacts of the MP, its specified value is 0.35-0.4 mm. Make appropriate adjustments if necessary. After that, check the value of the lead angle.

After completing the above steps and correcting any identified problems or replacing damaged components, start the engine. If in this case the motor does not work, try replacing the capacitor located in the breaker.

Useful Tips

If the noise suppression resistance installed in the distributor rotor has failed, it can be temporarily replaced with a spring from a conventional ballpoint pen.

What to do if a breakdown of the ignition switch or a broken wiring is detected along the way and, as a result, power does not flow to the ignition coil? In this case, you can drive to the nearest service center by connecting the emergency power supply using an additional cable. Connect one end of it to the positive terminal of the battery, and the other to the "+ B" terminal of the coil. However, make sure that there is no arcing. If strong sparking occurs, disconnect the wire immediately. This means that there is a problem with the wiring and this option will not work.

VipWash.ru

Simple ways to check and connect the ignition coil on a VAZ 2106 in a garage

Often the cause of the disappearance of the spark on the spark plugs is a malfunction of the ignition coil (short circuit). The article tells about the device, how to check the VAZ 2106 ignition coil, its malfunctions and how to fix them.

The VAZ 2106 ignition coil is one of the components of the ignition system, which also consists of a lock, high-voltage wires, a distributor and spark plugs.

The coil is a high voltage pulse transformer. They consist of a core on which a secondary winding of a thin wire is wound. Above the secondary winding, the primary winding is wound from a thick wire. Each of the windings is connected to a battery.

Short circuit device diagram

The task of the core is to strengthen the magnetic field. When the circuit is broken, a high-voltage current arises in the secondary winding, which is supplied to the candle, where a breakdown is formed and a spark jumps.

How to check the ignition coil?

Short circuit testing is performed in stages:

visual inspection;
checking the presence of voltage;
resistance measurement using an ohmmeter;
checking for a spark.

A visual inspection reveals mechanical damage to the surface, the presence of oil drips, mud deposits, the reliability of connections and contacts of the electrical network. To check the voltage supply to the unit, you need to turn on the ignition and measure the voltage between terminal "B" and ground with a voltmeter. It should be 12 V. If the voltage is not supplied, then the problem is in the ignition switch.

To check the windings, the multimeter must be set to resistance measurement mode. To check, one probe of the multimeter is connected to the terminal of both windings, the second probe is connected to the terminal of the primary winding. In this case, the device will show the resistance of the primary winding (video by altevaa TV).

By connecting one probe of the tester to the terminal of the primary winding, and the second to the central terminal of the short circuit, you can measure the total resistance of both windings. In this way, the value of the resistance of the secondary winding can also be obtained.

When measuring resistance on the windings, the readings should correspond to the following values:

for the primary winding - 3-3.5 kOhm;
for the secondary winding - 5-9 kOhm.

If the values \u200b\u200bdiffer from the above, the unit is defective and requires repair. A sign of a short circuit malfunction is the presence of a short to ground.

Checking the windings for a short circuit

Do not touch the motor case with a high voltage wire, as this will lead to a breakdown of the short circuit winding and disable it.

In VAZ 2106 cars with an injection engine, there is no interrupter-distributor, two short circuits are used, which are located on the cylinder head cover. The voltage in the network is checked by a special controller. A common cause of a short circuit malfunction is overheating or interturn short circuit of the windings. This occurs if the engine is operated with excessive spark plug clearances or if there is no contact in the connections.

Typical unit malfunctions and ways to eliminate them

A common cause of component failure is faulty high-voltage wires and candles. The short circuit often flies if the ignition is on for a long time, and the engine does not work at the same time. At elevated temperatures, the insulating material of the windings dries out and crumbles. This causes a short circuit. The short circuit becomes unusable, it should be replaced.

Contact ignition system device

The following components are included in the ignition contact circuit design:

lock (switch);

coil (short circuit);

breaker (MP);

distributor (MR);

regulators, centrifugal and vacuum (CR and VR);

candles (SZ);

high-voltage wires (VP).

Ignition coil (Short circuit) with two windings allows you to get a high current by converting low voltage.

Mechanical breaker (MP) is structurally made together with a mechanical distributor (MP) in one housing - a distributor. It provides opening of the primary short circuit winding.

Mechanical valve (MR) in the form of a rotor with a contact cover distributes current to the candles.

Centrifugal regulator (CR) allows you to change the advance angle (UOZ) in proportion to the crankshaft revolutions. Structurally, the CR is made in the form of two weights. In the process of rotation, they act on the movable plate, on which the MP cams are located.

Vacuum regulator (ВР) makes adjustments to the value of the lead angle (LEO) depending on the load. When the position of the throttle valve (DZ) changes, the pressure in the cavity behind the DZ changes. BP reacts to the degree of vacuum and adjusts the value of the SPL.

Principle of operation and diagram of the contact system

Checking the ignition system VAZ-2106

First, carefully check the integrity of all elements of the system, as well as the reliability of the connection of high-voltage wires in all areas. They should fit snugly into their respective pins.

To check the operation of the distributor, remove the cover and inspect it for any damage, as well as the integrity of the carbon contact. If any defects are found, replace the cover with a new one.

Useful Tips

If the noise suppression resistance installed in the distributor rotor has failed, it can be temporarily replaced with a spring from a conventional ballpoint pen.

Today we will consider the device and schemes of ignition systems for VAZ cars of all major models. Since the carburetor versions of the VAZ are almost history, let us dwell in detail on the ignition systems of injection vehicles. Their ignition system is based on an electronic ignition module. We also recommend that you carefully consider the choice of candles and the quality of high-voltage wires, because the quality of the spark and, accordingly, the operation of the ignition system as a whole will depend on them. The information is intended as a reference guide for self-repairing cars.

Pinout and diagram of the ignition coil VAZ

Pinout of ignition coil modules of various car models of the VAZ family:

Ignition VAZ 2101

1 - generator; 2 - ignition switch; 3 - ignition distributor; 4 - breaker cam; 5 - spark plugs; 6 - ignition coil; 7 - storage battery.

Ignition VAZ 2106

1 - ignition switch; 2 - fuse and relay box; 3 - EPHH control unit; 4 - generator; 5 - electromagnetic valve; 6 - microswitch; 7 - spark plugs; 8 - ignition distributor; 9 - ignition coil; 10 - storage battery.

Ignition VAZ 2108, 2109

Ignition VAZ 2110

Ignition VAZ 2111

Ignition VAZ 2112

Ignition VAZ 2114

Non-contact ignition system diagram: 1 - non-contact sensor; 2 - ignition distributor sensor; 3 - spark plugs; 4 - switch; 5 - ignition coil; 6 - mounting block; 7 - ignition relay; 8 - ignition switch.

How to check the ignition coil of a VAZ

If the ignition coil is defective, the engine will not start. A characteristic sign of a defective coil is its increased temperature when the ignition is off. It is easy to determine by hand by touch.

Signs of a faulty ignition module may be as follows:

unsure engine start or failure at start;
failures with a sharp change in speed;
high fuel consumption;
two cylinders do not work, the engine is in a fever;
lack of dynamics;
a sharp drop in power;
drop in power and thrust after warming up.

These symptoms can be caused by more than just the ignition module. To determine the malfunction, it is enough to spend a few minutes diagnosing candles, high-voltage wires and caps. This will exclude the remaining elements of the ignition system and be sure that it is the ignition module that is faulty.

Checking the ignition coil is done in one of 2 ways. The simplest: remove the central wire from the breaker-distributor, bring it to the motor housing and turn it with a starter, and a running spark should appear. After that, we check the power supply to a separate spark plug, for which we unscrew the working spark plug, and bring it with a contact to the "mass" and make an attempt to start the engine. In this case, the spark must come from the wire to ground. In its absence, the reason will be in the malfunction of such an element of the system as the ignition coil.

To check the module in the second way, only a multimeter is useful to us, then follow the step-by-step instructions:

We check the power supply and the presence of pulses supplied from the ECU. We check the power supply between the central terminal (15) of the wiring block connected to the module and the engine ground. With the ignition on, the voltage should not be less than 12 V. Otherwise, either the battery is dead or the ECU does not work.
We check the pulses from the ECU on the wiring block. We install one tester probe on connector 15, the second on the far right, then on the far left. The assistant cranks the engine with a starter, and at this time we record short-term voltage surges with a tester. If there are no pulses from the ECU, it is he who is to blame.
We check the resistance on the secondary windings of the coils. We put the tester in the resistance measurement mode and measure it at the high-voltage terminals of the module cover. Between 1 and 4 pins and 2-3, the resistance should be 5.4 kOhm. Otherwise, the module must be replaced.
We check the resistance of the primary windings between contacts 15 and the extreme right, then the extreme left terminals. The nominal is 0.5 ohm. No deviation is allowed.
We check the module for a short circuit. In ohmmeter mode, install one multimeter probe on the center terminal, the second on the metal case. There should be no resistance. If the device detects at least some resistance (other than unity or infinity), the module must be replaced.

Connection and replacement of short circuit VAZ

The procedure for removing and installing the ignition coil on old VAZ models:

First, disconnect the center high-voltage wire leading to the distributor (ignition distributor).
Disconnect all power wires from the coil contacts. Since they are fastened with nuts, an 8 wrench is required for this.
If you do not know which wires to connect to which connector, then it is better to immediately remember or mark them in some way so that later, during installation, connect them correctly.
Unscrew the coil body. It is attached to a clamp (clamp), which is pressed to the car body with two nuts.
After the work done, you can remove the ignition coil and replace it if necessary.

For VAZ cars of a new type:

We dismantle the "minus terminal" from the battery.
Remove the upper protective cover of the engine. If the volume of the engine is 1.5 liters, then this part is not present, and this step is skipped.
We take out the high-voltage wires from the coil.
Now, using a 13 key, unscrew the two fasteners.
Using a 17 wrench, loosen one coil mounting bolt.
We take out the module.
Unscrew the coil from the holder with a hexagon.
The assembly is carried out in the reverse order.

Particular attention should be paid to the connection, since the high-voltage wires must be located in the strict order provided for by the design. If this is not done, then the car will triple or the engine may not start at all.

Replacing the ignition coil with a VAZ is quite simple. Even a novice motorist is able to do this in his garage, and if everything seemed too difficult, contact a car service. Particular attention should be paid to the choice of a product, since this will determine how well the engine and ignition system will work.

VAZ 8 and 16 valve models

Despite the similarity in engine design, the ignition system of the 1.5-liter 16-valve injection engine differs from the 1.6 16-valve engine. In the 1.6 liter engine, an electronic contactless ignition system was used with individual coils on each spark plug. Therefore, the need for an ignition module has disappeared. Such a system is more reliable and cheaper to operate, since if one coil fails, it is not necessary to replace the entire module.

On the 16-valve VAZ 2112 injection engine with a volume of 1.5 liters, the same contactless ignition system was used as on the 8-valve engine, but the ignition module was installed differently. Its catalog number is 2112-3705010. The design of the module remains the same - two ignition coils (for 1-4 and 2-3 cylinders) plus switch keys in a single block. The spark is fed into the cylinders in pairs by the idle spark method. This means that sparking occurs in two cylinders simultaneously - in one at the compression stroke (working spark), in the second at the exhaust stroke (idle spark).

Repair video for KZ VAZ

Ignition of a car is a set of devices and devices that ignite the combustible mixture in the cylinders in accordance with the engine operating modes. I will tell you what this coil is and how important it is for the ignition system to work properly. Consider how the ignition coil connection diagram looks like, and actually what it consists of.

Structurally, the ignition coil consists of the following elements:

Insulator;
Housing;
Insulating paper;
Winding (primary and secondary);
Insulation material between windings;
Primary winding terminal;
Contact screw;
Central terminal;
Cap;
Output terminal on the primary and secondary windings;
Spring of the central terminal;
Primary winding frame;
External insulation on the primary winding;
Mounting bracket;
Outer magnetic circuit and core.

So, briefly about the principle of work.

The connection diagram is quite simple for a specialist, but it is easy for a beginner to get confused in it.

Video "Ignition coil connection diagram"

The recording shows how you can connect the coil yourself.