Hall sensor VAZ 2107 carburetor contactless ignition

The Hall sensor of the VAZ 2107 is one of the most necessary components in the car’s ignition system. If it fails, then interruptions in the operation of the power plant may begin and it is quite possible that the car will stop completely.

The Hall sensor on the VAZ 2107 is a control device that is a camshaft controller, which is installed near the distributor and guarantees its correct operation. The breaker-distributor shaft has a special plate in the shape of a crown. This plate has special slots, and there is a magnet on the camshaft controller. As the camshaft rotates, metal vanes enter the controller space. As a result, a pulse voltage is generated that goes to the ignition coil, and it is converted into an increased voltage. The ultimate goal is the spark plugs.

Ignition operation diagram

It should be noted that the VAZ 2107 camshaft controller has only 3 terminals. One is connected to the minus, and the other supplies a voltage of six volts, the 3rd one transmits the impulse directly to the switch.

VAZ Hall sensor

How to recognize the problem

If you suspect that the Hall controller on a VAZ has begun to malfunction, before replacing it you need to make sure that it is the problem. This is determined by the following criteria:

• the power unit starts with difficulty or does not start at all;
• the engine runs jerkily, the speed is uneven;

Power point

• jerking when driving at high speeds;
• unpredictable engine operation - it can stop at any time.

Symptoms of a problem

Even a high-quality Hall sensor on a VAZ 2101–2107 (carburetor or injector) can sooner or later fail. The malfunction can be determined by the non-standard behavior of the engine. Here are the 6 main symptoms of DH disorder:

1. The engine stalls.
2. Power is lost.
3. Jerks (dips) are felt in movement.
4. Idle speed floats or disappears.
5. The engine starts with difficulty or does not start at all.
6. 3 spark plugs are working and popping noises are heard in the exhaust system.

The listed signs most often indicate a defect in the Hall sensor, but sometimes other factors can cause unstable operation.

How to check

If your car has an electronic control unit (ECU), then you can do diagnostics through an application on a smartphone (for example, ELM327 VAZ for Android). The program will show whether there is a misfire or not. In other cases, it is recommended to go to a car repair shop, where the system will be checked with a multimeter (tester). Sometimes you just need to move the connector and the problem goes away.

Verification method

Experts recommend the following methods for checking the Hall sensor of a VAZ family car before replacing it:

1. The easiest and most reliable is to borrow a proven or new sensor from someone and install it to replace your own. If the engine operation has returned to normal, then you need to go to the store and buy a new one.
2. The second method is to measure the output voltage using a tester. A working sensor produces a voltage of 0.4-11 Volts.
3. The next option can be called an imitation of the work of the Hall controller. It is not difficult to master; you need to pull out the block with 3 plugs from the controller itself. Next, turn on the ignition and connect the 3rd and 6th outputs. If there is a spark, then most likely the cause of interruptions in the system should be looked for in another unit, but not in the sensor.

Prices

For VAZ 2108–2109, the original number of the Hall device is product with article number 21080-3706800-00. If it is not available, pay attention to analogues. Possible options are presented in the table.

The presented analogues are high-quality products that can be installed on a car.

Replacement

If you are convinced that the problem is with the Hall sensor, then you can replace it yourself. This is not difficult and any motorist can handle it if desired. There is no point in overpaying the service station technicians; you can check it yourself and handle the replacement yourself.

Tools

You will need this screwdriver

Stages

It is advisable to carry out work in a well-lit room.

Correct connection of the block

1. First of all, it is necessary to remove the distributor itself from the car and then unscrew the cover.
2. Next, pull up a little and remove the slider.
3. Remove the plastic cover.
4. The plug is secured with a bolt and needs to be unscrewed.
5. Let's take him out.
6. The sensor plate is held on by bolts that need to be unscrewed.
7. The vacuum corrector is fixed with bolts, we also unscrew them.
8. Remove the retaining ring.
9. We remove the traction and the corrector itself.
10. To get the wires you need to move the clamps apart.
11. Remove the support plate.
12. Now all that remains is to unscrew a couple of bolts and remove the Hall sensor.
13. We install a new one.
14. Assembly work is performed in reverse order.

Important! If any signs of breakdown occur, do not delay repairs. Check the Hall controller immediately and replace it if necessary.

As you can see, everything is very, very simple. It is worth spending just an hour of your time to save several thousand rubles, which you will have to pay to the service station.

Self-check video

This video shows how to properly check the Hall sensor of a VAZ car.

How to check and replace sensor on a VAZ 2107

?

Sensor

Hall VAZ
2107
is one of the most necessary components in the car ignition system. If it fails, then interruptions in the operation of the power plant may begin and it is quite possible that the car will stop completely.

Sensor

Hall on the VAZ
2107 is a control device, which is a camshaft controller, which is installed near the distributor and guarantees its correct operation.
The breaker-distributor shaft has a special plate in the shape of a crown. This plate has special slots, and there is a magnet on the camshaft controller. As the camshaft rotates, metal vanes enter the controller space. As a result, a pulse voltage is generated that goes to the ignition coil, and it is converted into an increased voltage. The ultimate goal is the spark plugs. Ignition operation diagram

2107 camshaft controller has only 3 terminals. One is connected to the minus, and the other supplies a voltage of six volts, the 3rd one transmits the impulse directly to the switch.

VAZ sensor

Hall

KEY-DOP

Principle of operation

The sequence of action of the Hall sensors on the VAZ 2107–21099 is formed according to the Hall effect. In the resulting magnetic field, the sensor reads pulses from a full revolution of the distributor shaft. Signals are generated thanks to slots, of which there are exactly the same number as cylinders. The sensor itself is placed on the distributor support panel along with a magnet.

Energy comes to the sensor from the switch. There are also wires on the DC - mass and output pulses. The reverse voltage changes taking into account changes in the magnetic field. When receiving impulses, the commutator will supply electric current to the coil, which increases it and sends it directly to the spark plugs.

For reference. The transition of automakers and classic owners to electronic ignition systems has contributed to the emergence of 2 main advantages. Firstly, the lack of a contact group, which burned out from time to time. There is no such problem with hall sensors. Secondly, a higher spark plug voltage (30 kV versus 15 kV). All this improves engine performance.

Verification method

Experts recommend the following methods for checking the Hall sensor of a VAZ family car before replacing it:

1. sensor
   from someone and install it to replace your own. If the engine operation has returned to normal, then you need to go to the store and buy a new one.
2. The second method is to measure the output voltage using a tester. working sensor
   produces a voltage of 0.4-11 Volts.
3. The next option can be called an imitation of the work of the Hall controller. It is not difficult to master; you need to pull out the block with 3 plugs from the controller itself. Next, turn on the ignition and connect the 3rd and 6th outputs. If there is a spark, then most likely the cause of interruptions in the system should be looked for in another unit, but not in the sensor.

KEY-DOP

Stages

It is advisable to carry out work in a well-lit room.

Correct connection of the block

1. First of all, it is necessary to remove the distributor itself from the car and then unscrew the cover.
2. Next, pull up a little and remove the slider.
3. Remove the plastic cover.
4. The plug is secured with a bolt and needs to be unscrewed.
5. Let's take him out.
6. The sensor plate is held on by bolts that need to be unscrewed.
7. The vacuum corrector is fixed with bolts, we also unscrew them.
8. Remove the retaining ring.
9. We remove the traction and the corrector itself.
10. To get the wires you need to move the clamps apart.
11. Remove the support plate.
12. Now all that remains is to unscrew a couple of bolts and remove sensor
    .
13. We install a new one.
14. Assembly work is performed in reverse order.

Self-check video

This video shows how to properly check sensor of a VAZ car.

When the Hall sensor on a VAZ 2107 breaks down, this makes it impossible to continue driving. The Hall sensor belongs to the category of key parts of a contactless ignition system, and if this part begins to fail, the switch will stop sending impulses to produce a spark. To troubleshoot the problem, you need to understand in detail the purpose and operation of the device.

Summary

The Hall sensor reads the pulses and sends a signal to the switch. Contactless ignition is much more efficient than cam ignition. Engine performance has noticeably improved, and there is no carbon deposits on the contact group. If the hall sensor on your VAZ 2107 (carburetor or injector) is malfunctioning, then the malfunction can be determined by the symptoms of defective engine operation or through simple diagnostics. Replacing the DH is easy to do yourself. To do this, it is recommended to prepare a well-lit garage with a workbench and a simple set of tools.

Why is a Hall sensor needed and how does it work?

The device of the contactless ignition system of the VAZ 2107 car has such an element called a Hall sensor. Its fundamental purpose is the ability to detect the angle of the crankshaft and camshaft of the power unit. The Hall sensor is not installed on injection models of sevens, it is installed only on carburetor ones.

According to the value of this device, voltage pulses are supplied to the spark plugs. The functioning of this element is based on increasing the voltage in the cross-section of a wire placed in a magnetic field. The element is connected by three terminals, two of which provide power supply (plus and minus), and the third contact is intended directly for supplying a signal. The device received this name due to a special effect that was identified by scientist Hall. In the distributor on the shaft there is a plate that is part of the control of the device controller.

When the motor operates, the metal in the slots alternately changes, and the magnet, which is located inside the controller, begins to be excited by oscillations of the magnetic field. In this case, the controller generates voltage pulses issued by the switch and supplied to the coil. The coil, in turn, raises the voltage to a high value and transports it one by one through armored wires to the spark plugs. Knowing the operating features, you need to deal with the malfunctions, but before that it is important to note that the Hall sensor on the VAZ 2107 is located in the distributor under the cover. To replace it, you will need to disassemble the distributor.

Basic sensor malfunctions

Any part on a car sooner or later begins to malfunction, and the Hall sensor is no exception, even though it has the simplest design. Its breakdown is detected by detecting the following defects:

• Inability to start the engine.
• Unstable and unstable operation of the motor.
• The occurrence of jerks.
• The engine begins to stall.
• The appearance of the detonation effect.

If the above symptoms appear, then there is no need to rush to change the Hall sensor, since similar phenomena can also occur due to other breakdowns of the ignition and fuel supply system. To verify that the device is faulty, you will need to perform a suitability test.

Check Features

The BSZ contactless ignition on the VAZ 2107 has a Hall sensor, the serviceability of which determines the normal operation of the internal combustion engine. If you suspect that it is faulty, then you need to check the Hall sensor. To do this, there are different ways on the basis of which one can draw a conclusion about the suitability of the element.

The following two methods are used to check an element:

1. The simplest test method is to install a known-good element. If the signs of malfunctions immediately disappear, it means that the breakdown was detected correctly and successfully repaired. The disadvantage of this method is that you must first purchase a working element.
2. Use a multimeter to check the voltage at the sensor output. The device switches on the voltage measurement mode, after which the value at the device output is measured. The value should be between 0.4 and 11 Volts, and if this is not the case, the element should be replaced.
3. Simulation of device operation. The test diagram is as follows - the element terminal should be removed from the connector, and then turn on the ignition. Now we begin to simulate the operation of the Hall sensor, for which contacts 3 and 6 of the switch output are connected. If sparking occurs, the element must be replaced.