Home Heating What is the DPKV on the VAZ 2110. What features talk about the malfunction of the crankshaft sensor? Crankshaft position sensor diagnostics

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What is the DPKV on the VAZ 2110. What features talk about the malfunction of the crankshaft sensor? Crankshaft position sensor diagnostics

In Engine Construction VAZ 2112 Position Sensor crankshaft This is an electromagnetic sensor through which in the fuel injection system in the fuel injection system, the ignition system and fuel injectors are synchronized. According to this, DPKV is actually the main, without it the work of the entire fuel injection system becomes impossible.
When the crankshaft sensor malfunction occurs on the VAZ 2112, it will inevitably lead to unstable operation of the motor. To identify malfunctions and replace DPKV very simply by reading our article.

Principle of operation and location

It should be noted that faults (the controller here and then in the text) are rare, however, going on a long journey, it is better to have a spare serviceable sensor, if DPKV fails, then further movement on the car is most often impossible.
Let us turn to the principle of operation:

Tool pulley of the drive of the electric generator is made in the form of a disk having a circle 58 of the teeth located every 6 degrees
In order to generate the pulse of the synchronization of revolutions for the injector on the pulley, there are no two teeth.

The car establishes either all-metal pulley, or a pulley with a damper (rubber insert)
All-metal pulleys in the process of operation of the engine wear is practically not affected.
You only need to monitor the lack of dirt and extraneous particles between the teeth
If the pulley has a damper, then it is necessary to monitor the condition of the damper, damage to the damper will definitely lead to problems with the operation of the engine
While doing repair work It is necessary to be careful not to subject the pulley of deformation, the deformation can lead to interruptions in the operation of the motor
Visually monitor the condition of the drive, you can viewing through the front right wheel arch
In our case, the engine has all-metal pulley
When faults faults are faulty than the position of the crankshaft, or the drive pulley of the electric generator, as well as the THM drive, the computer can fix the error, which will reflect the burning "Check Engine" (check engine)
And add the corresponding code "35" or "19" to the error buffer

The following symptoms characterize the appearance of malfunctions of these elements:

Unstable motor turns on idling
There is a spontaneous decline or an increase in engine speed
Full stop of the motor work, and the full impossibility of running the motor
Tangible reducing motor power
The appearance of detonation with standard dynamic loads, as well as skipping sparking (Troit Motor)

The question remained on the VAZ 2112 where the crankshaft sensor is replied - it is located on the lid.

Signs of malfunction DPKV

How to reveal that the crankshaft position sensor broke on the VAZ 2112, and not something else:

A strong decrease in the dynamic characteristics of the motor during the movement of the car (this problem has many reasons, however, it is about such a malfunction to report a computer that, finding the problem lights a light bulb " check Engine»On dashboard)
If the motor has spontaneously "walk" the revolutions (down or rises)
Idle speed
The appearance of detonation in the motor with dynamic load
The engine is impossible to start

Here are the main characteristic symptoms of the breakage of the crankshaft rotation controller, or the pulley of the drive of the generator or timing of the timing. From the very beginning you need to understand how you can perform qualitative check The efficiency of DPKV do it yourself and be one hundred percent sure that everything is in order with him.
Why should this check be performed first always?
Everything is simple, even without looking at the fact that the controller is in an uncomfortable place, our instructions for testing its performance will help to fulfill everything quickly. And after checking it will be clear whether the controller must be changed.

Perform check

It is possible to determine the health (DPKV) in several ways. Each method requires to take advantage of special devices.
The most often used three main ways to test the performance of the crankshaft controller, let's consider them in order:

Listening to the advice of professionals, it is always necessary to remove it before checking, unscrew the fastener of the Crankshaft Sensor VAZ 2112, do not forget, while fixing its initial position on the engine
Everyone is clear that it is necessary to examine it after removing
Visual inspection makes it possible to detect external damage on it
And understand the condition of its contact pad and core of the contacts themselves
Dirt from it should be removed, with alcohol or gasoline
Contacts from the crankshaft controller must be clean
During the removal process, it is necessary to clearly mark the distance from the controller core to the synchronization disk
It usually varies from 0.6millimeters and up to 1.5millimeters
If there are no visible problems, you need to move to identifying hidden problems in electrical scheme of this device

Diagnostics using an ohmmeter

To measure the resistance of the crankshaft controller, you can use an ohmmeter (multimeter):

A normally working controller will show values \u200b\u200branging from 550 Ohm and up to 750 ohms
This checking is a multimeter consist in measuring the resistance of the controller inductor
In case of damage to the coil, the sensor characteristics are displayed on the resistance primarily.
Install the required range and check the resistance of the tester on the conclusions
This check is the most simple and elementary, on this it does not give 100% confidence in the correctness of the diagnosis
In order not to doubt the actions performed, read carefully before starting work the instructions applied to your car.
If, the obtained measurement indicators do not fit into the claimed interval, then it is necessary to replace the crankshaft speed controller

The second way to check the efficiency of DPKV is more laborious and to implement it, you will need such devices:

Megommeter
Inductivity meter
Network transformer
Digital voltmeter

For the accuracy of the obtained indicators, the air temperature is preferable to only 20-22 degrees, we do the following:

We measure the oxmere resistance to winding, as before
Then go to check the inductance of the winding using a special meter
The inductance of a good meter it is within the borders of 200-400 Meghertz
Next, we use the megommeter, and go to check insulation resistance
At a voltage that makes up 500 volts, this parameter should not exceed 20mag
If random magnetization of the synchronization disk occurred during the repair of the sensor, then it is certainly necessary to make it a demagnetization, using the network transformer
After analyzing all the data obtained as a result of these dimensions, we can conclude the performance of the crankshaft controller or the need to replace it
Do not forget when installing a new or old instrument to your place, it is very careful to navigate the marks left when dismantling, remember the need to range 0.5-1.5millimeter from the controller core to the synchronization disk

The third way to check the crankshaft speed controller from all the most accurate and is used, as a rule, in professional stations
Since it requires an oscilloscope and a special program.
This method does not require removal from the instrument engine
So how allows you to see the signal formation on the screen
Therefore, the presence of digital oscilloscope helps specialists effectively identify various problems encountered in the injection system

Diagnosis of oscilloscope

The third method is not available to everyone, since there is no oscilloscopes everywhere and not all can arrange the price:

To get the correct indicators, you need to take a black oscilloscope clamp, the so-called "crocodile", and connect to the mass of the machine being checked
The probe of the probe is set parallel to the signal output of the sensor (the controller connector - terminal A)
And the second probe from the oscilloscope must be connected to the input analog number 5USB Autoscopeii
These actions must be made in order to see the voltage oscillograms at the input of the crankshaft position controller
Then it is necessary to enable the display mode of the oscillograms called "InductiveCRANKSHAFT"
Only now you can run the car
When the launch of its motor is not possible, then you need to rotate the motor starter
If the signal from the crankshaft position controller goes, but the output parameters of the signal do not coincide with the nominal. Then twitching the car can occur, and the launch of its motor, failures
Distinguishing characteristics of the outgoing signal of the crankshaft controller indicate the existing faults or the controller itself, or the specifying disk and the possible breakdown of the teeth
The true assumption about the nature of the malfunction becomes understandable when considering the waveform on the oscillogram of voltage pulses, which are removed at the output of the crankshaft position controller

And so you got acquainted with all three possible methods Chefs of the controller (sensor) of the crankshaft:

With an ohmmeter (measurement of winding resistance);
Using the tester (checking the insulation resistance and its inductance);
With oscilloscope

How to check you choose to choose your capabilities. The main thing to be objective in obtaining results, careful and very careful when checking

Replacing the sensor

To remove the controller position of the crankshaft, you will need the "10" key.
The order of removal is:

Turn off the ignition and disconnect the sensor connector
Unscrew the bolt fixing the sensor using the key "10", the photo below

Remove the DPKV from the oil pump cover bracket
Install a checked or new controller in place in the same way.
Sensor brand Position of the crankshaft VAZ 21124 by catalog 2112-3847910

On this, everything will additionally understand the videos will help.

VAZ-2107 crankshaft position sensor, as well as other injection machines, is designed to synchronize the operation of the engine ignition system, as well as fuel injectors. The failure of this part will result in one of three situations: unstable engine operation, incomplete fuel combustion or a complete refusal of the motor.

The most common types of crankshaft sensors are induction. It is such a sensor installed on cars VAZ-2107 injector. They have their own features, advantages and disadvantages, as well as methods of diagnosis and repair. This information will briefly be given later.

Signs of sensor malfunction

The faults described below may be signs of breakdowns and other nodes or mechanisms. However, when at least one of them, it is necessary, including to test the performance of the crankshaft position sensor, the benefit of doing this is not difficult.

So, the signs of the DPKV breakdown are:

reducing the dynamic characteristics of the machine (this is expressed in poor acceleration and acceleration, most of all this is at low gears);
"Floating" engine turnover, including idle (although such a factor may occur during movement, which is unfavorable with the uniform movement of the car);
increased flow fuel;
there is a risk of detonation during the development of significant dynamic loads;
if the crankshaft position sensor is completely out of order, it is impossible to start the engine.

The described causes, besides others, are the consequences of the special design of the DPKV, which is described below.

Crankshaft position sensor design

The design of the DPKV is not relieved, and consists of a small number of items. In particular, its main element is the magnetized steel core, which is wound a thin copper wire. From above, they are covered with plastic (plastic) housing. Naturally, in copper winding, all wires are isolated between themselves (this can be implemented in different ways, for example, by means of a compound resin or conventional insulation of PVC or other material).

Operating principle The devices are as follows. In the immediate vicinity of the sensor rotates the "monitoring" disc with the tooths around the perimeter. Two of them are absent, forming some void. The main task of the sensor is to fix the passage of this site and feed the corresponding signals to the ECU. If he will do it with a delay or with a weak signal, then the electronic unit It will give incorrect information into the fuel system, and a mixture of non-optimal composition will be formed.

DPKV verification methods

There are three main methods with which you can check the performance of the crankshaft position sensor. It can be done without complicated devices (accuracy in this case is not guaranteed), but necessarily the device must be dismantled before checking. At the same time, denoting its position by tags. This is necessary in order for the subsequent installation you did not have any problems with the start of the engine.

So, the first method of checking is to measure the resistance of the inductor inductor. The most simple method, but it does not give complete confidence in the accuracy of the result. To perform the specified procedure, you need standard electronic multimeterincluded in the insulation resistance measurement mode.

Verification is carried out in pairs on wire outputs. If everything is in order with the insulation, then the corresponding value will be from 500 to 700 ohms. If this value is lower, then the likelihood of the emergency short circuit is great. As a result, the sensor will issue incorrect values.

The second method is to test the inductance of the coil. As for the instruments, then this case You can use directly digital multimeter having inductance measurement mode. Otherwise you need to apply optional equipment With the corresponding function. The inductance value is usually from 200 to 400 guns.

Finally, the third method is to use the oscilloscope. This is the most difficult way to check, however, it gives the most accurate result. In particular, it is possible to not only state the fact of serviceability or malfunction of the coil, but also to estimate its general condition. This becomes possible due to fixing the formation of signals on it.

To work, you will need an electronic oscilloscope, computer and appropriate software For their interaction. An engine at idle turnover is started to check, and the oscilloscope probes are connected in parallel to the outputs of the crankshaft position sensor.

If it is working, then on the instrument screen you will see an even oscillogram without jerks and breaks. When the latter take place, this means that the sensor is faulty. You can also first remove the DPKV and check it out, having conducted a metal object before its sensitive surface. In this case, on the screen, you will also see how the signal is formed in the sensor coil.

Modern "dozens" are equipped with many different electronic devices and nodes performing various functions. One of important elements It is the crankshaft sensor by car VAZ 2110. In this article we will tell you in detail about the purpose and signs of the regulator fault.

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Description of the crankshaft sensor

So, what is this controller and what is its purpose? Where to find a device to make it replace? What are the main signs of the device malfunction? We will give answers to these questions below.

Functions and purpose

On the engine 8 or 16, DPKV valves are designed to perform non-controlling options, but for the synchronization of the phases in the injection of gasoline. Also, the crankshaft sensor on the VAZ 2110 transmits the impulse to ignite the fuel and air mixture in the combustion chambers power aggregate. Therefore, in the event of a controller failure, this may lead to the fact that various systems vehicle Will functioning not excellent. And this means that normal work The engine will be impossible.

By itself, the Crankshaft Sensor VAZ 2110 is an inductive type device, this controller must respond to the passage of teeth on the specifying disk. This disk is mounted on the pulley of the generator drive, and the controller itself is installed next to it. There are 58 cloves on the pulley, between which there is a vpadina size of 2 teeth. This catch allows you to synchronize with the upper dead point of the engine piston. At the moment when the Wpadina passes by the controller, the corresponding signal arrives on the engine control unit.

The designs of the devices of this type are quite a lot, the principle of their work is based on such a regulator as the Hall sensor of the VAZ 2110. In the latter case, the regulator also responds to a rotating shaft, but its triggering is carried out as a result of a permanent magnet passage.

Where is?

If malfunctions are noticed in the engine, before proceeding to identifying breakdowns and signs of malfunction, it is necessary to know where the regulator is located. Where is the crankshaft position sensor on the 8- or 16-valve "dozen"? If you open the hood, then notice that the regulator can be found directly on the oil pump lid. As you can see, the location of the regulator is not particularly comfortable. VAZ engineers thought out this moment, thinking about the convenience of replacing the controller, so equipped with a DPKV with a long wire for 80 cm.

Signs of faults

If the controller armsed on the oil pump fails, the driver will not be able to start the engine. In the event of a breakdown, solve the problem of the impossibility of starting the motor will allow only the regulator replacement. It should be noted that on the 8- or 16-valve engines, the problem of the complete failure of the controller occurs, as practice shows, in most cases the problems accumulate.

So, what are the signs of malfunction DPKV:

Reduced engine power while driving. When the driver rises sharply on gas, power failures can be felt. Note that in carburetor engines This can occur with incorrect operation of the accelerator pump.
In some cases, the engine detonation can appear, especially if it works on high revolutions. Sometimes this problem may be due to the low quality of the fuel used.
May be difficult to launch the engine.
Another sign of a malfunction in which the replacement of the crankshaft sensor on the "dozen" is required, is the increased consumption of gasoline (author of the video about replacing the crankshaft sensor on the domestic library - IZO channel))) Lenta).

In general, the failure of this controller can lead to an unstable operation of the power unit. As for the reasons, they are usually due to the factory marriage. In some cases, the regulator breaks due to contamination at the installation site.

Diagnostics

The procedure for diagnosing the device consists in checking the resistance parameter of its windings, for this is used as a m. If, as a result of diagnostics, the tester showed values \u200b\u200bother than 550-570 ohms, this indicates the failure of the controller. To prevent the sensor breakdown, the place of its installation should always be kept clean. In addition, it will not be superfluous to check and the integrity of the wiring, very often the quality of the compounds plays an important role. As for the repair, the DPKV can not be repaired, the regulator can only be changed to operational.

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Replacement Guide

How is the replacement of the Crankshaft position sensor of the VAZ 2110? To perform the task you will need only a wrench by 10.

Step-by-step instructions for this process are presented below:

First you need to turn off the ignition. Just in case to prevent possible closures in on-board network Vehicle, you can disconnect the minus terminal from the battery.
Then open the hood and find the location of the controller. You need to disconnect the connector from the regulator.
Using a wrench on 10, you need to unscrew the bolt fixing the device. Remove the DPKV from the installation site on the oil pump cover, after which it is replaced by a new regulator. Before installing, you must be sure that the problems in the operation of the power unit are caused by poor wiring quality. Otherwise the replacement will not give necessary results. Clean the connector from dust and mud and the location of the device, this will avoid possible failures in its work in the future.

In order to find out which signs of faults appear at the crankshaft sensor during operation, which is different in a different signaling indicator, it is necessary to understand its design and basic tasks solved by them.

DPKV device and functions

This vehicle assembly allows you to adjust the fuel injection system of your vehicle. In addition, the DPKV is responsible for synchronization when the fuel injectors is fulfilled and the entire ignition system of the machine. The crankshaft position sensor device has the following elements:

Sample of the kapron frame;
Steel magnetic cores;
The winding kit for which a thin copper wire is used;
Wiring isolation (usually applied resin, enamel).

The main goal of this position sensor is the creation of synchronized operation in the ignition system and when working in the fuel injector kit. With the malfunction of this spare part there are unstable work on time of fuel supply. In addition, in full speed your engine can stop dramatically, which will lead to abrasion of valves and cylinders.

How does the fuel system receive a signal from the sensor?

During the operation of the sensor on-board computer (The microcontroller inside the machine) defines the specific position of the piston at a certain point of its operation in each of the cylinders. To regulate the operation using the sensor, the process is built according to the following plan:

The crankshaft has a special gear wheel, in which 2 cloves are specifically skipped.
When the crankshaft movement, all the teeth take place next to the DPKV sensor, while strongly distorting the state of its magnetic field.
As a result, pulses are formed in the inductance of the inductance of this device, which are sent to the onboard computer database. In this case, the missing 2 teeth are a starting or zero point, due to which the computer determines the initial position of the shaft.
Next, the computer inside the car counts the number of pulses sent by the device and determines the position of the crankshaft in each period of time.
After that, the reverse signal is sent to the computer to the sensor responsible for the triggering fuel injectorwhich already serves fuel in the ignition system.

Thus, if DPKV works correctly, the car will work with the greatest productivity by spending the minimum of fuel.

Tip: Learn the cause of the sensor malfunction to you easily help the electric hammers on the VAZ-2110. There is shown the location and combination of all the elements of the car.

Where is the crankshaft position sensor?

This component element is located in the bracket, which is installed in the central pulley area on the generator drive. As a rule, on most modern cars It is not installed in principle, but with a gap 1-1.5 mm near the design of the gentle pulley.

For convenience of disconnecting and adjusting the DPKV to it, 50-70 cm wires are connected to it, which has the necessary keys connectors. To make and adjust the position, it is necessary only to adjust the washer fixed above the landing socket of the element itself. The washer adjustment can be made as you yourself yourself and specialists in the car service - in any case, it will avoid the ambulance of the engine cylinders and significantly reduce fuel consumption.

When faults appear in the crankshaft sensor, the car's on-board computer is deprived of the opportunity to set a number of the characteristics necessary for the operation of the Ignition system:

Calculate the amount of fuel required for injection;
Reveal the right time for injection;
Change the angle of rotation of the camshaft;
Determine, ignition occurred or not (relevant for gasoline engines).

Tip: The appearance of ignition problems affects all machine systems. Often after fuel system Start breaking the steering rail to VAZ-2114.

Basic signs of DPKV fault

The main signs of troubleshooting when the crankshaft position sensor is operating:

The process of "detonation" of the engine (a characteristic knock appears during the operation of the hydrocompensators) during the larger load on the car, when driving on high mountain surfaces on low revs.
The engine works unstable - a sharp drop of revolutions at idle is replaced by the same increasing increase. Also, your car can simply stall when working in both in the process of driving along the track and when stopping for a while, for example, on the traffic light.
The motor does not gain momentum, although it works at full power.
The motor power periodically drops and rises in the absence of any external factors affecting this process.
The aerodynamic characteristics of the car are significantly reduced.
There are problems when starting the engine (quickly stalls or not start).
Spark disappears when Ignoring the system - either does not appear, or may not be absent.

In case you have found at least 3 signs from the above, it means that the problem lies in the crankshaft position sensor.

Tip: The specified fault list may also testify to the appearance of other problems when operating the engine. For example, sharp drops in the power of the motor and the reduction of revolutions may indicate a blockage in the fuel pump itself. That is why before repairing you need to diagnose not only the engine, but also the same wheels. What pressure indicators should be on the standards, you can see in the tire pressure table.

How can I check the health of DPKV?

Now, 3 methods can be distinguished from the most popular methods that are conducted quickly and with high accuracy give information about the sensor performance.

When measuring resistance, the winding kit on the sensor can use a special device - an ohmmeter (or in a different multimeter). When checking the device must show a value in the range of 550-750 Ohm.

The verification process - the resistance of the coil in the inductive sensor is measured. If the coil on the sensor turned out to be damaged, then first of all the breakdown will affect the resistance value. That is why the desired range is established at the beginning of the diagnostics and is checked by the correctness of the element.

This type of check is the basic and most elementary, but to give 100% confidence in the serviceability of parts it cannot.

Crankshaft position sensor diagnostics

The second method of checking the sensor for performance is considered more time consuming and requires a whole range of instruments that are only in car service. To carry out work, you will need:

Megaommeter model;
Special network transformer data decryption;
Standard sample inductor meter;
Normal digital voltmeter.

Tip: When checking DCPV, you need to maintain the temperature in the range of 20-22 degrees. This is necessary to display the correct indicators received by the instrument network.

With an ohmmeter, as before, measuring resistance. With the help of the inductance meter measuring the induction value on the winding. In good condition, the sensor gives a value of 250-400 mp. After that, we measure the meaning of insulation resistance, which at a voltage of 500 V should be 20 mΩ. The network transformer in this method is needed when a periodic magnetization of the sensor occurs. With good condition of the sensor, all received data must be in the established framework.

Diagnostics of signal feed sensor with a crankshaft position using an oscilloscope

This method of diagnosing DCHA can be considered the most accurate, as not only the component of the knee spare part is observed, but its design itself during the operation of the machine. The meaning of the procedure is to connect the oscilloscope to the crankshaft position sensor and tracking the values \u200b\u200boutgoing from it using the program. With this method, there is no need to dismantle the device from the engine - all work is carried out when the car is running.

Stages of performance testing:

A black clamp is connected, called the "crocodile" among specialists, to the mass of the vehicle being checked;
Next, the probe is set to the parallel to the signal terminals of the sensor itself (the characteristic connector with the designation of the terminal of the letter A);
Then the second oscilloscope detection connector must be connected to the corresponding analog input to the computer where the program is installed;
For proper connection You will see all component wires on the monitor screen from an oscilloscope as a graph with a signal voltage directly at the DCPV input;
To analyze, you need to select a special display mode of the constructed oscillogram - it calls "inductive_crankshaft". After that, it remains only to start the engine of the car and track the value obtained from the sensor.

When receiving a signal from the sensor, which on output parameters does not match the normal values, you can observe a sharp twitching of the machine's motor, as well as difficulties when it starts. The presence of violation data when analyzing the output signal at DCPV will testify the appearance of faults:

In the design of the sensor;
In the element asks the sync;
In teeth.

Which of the parts of the device eventually came into disrepair, it will be possible to understand only after analyzing the nature of the change in the wave of the device on the oscillogram. As a rule, it is not necessary to replace the sensor itself, but a gear wheel, which during operation has become unusable.

Video: Crankshaft position sensor check

DPKV device and functions

Sample of the kapron frame;
Steel magnetic cores;
The winding kit for which a thin copper wire is used;
Wiring isolation (usually applied resin, enamel).

How does the fuel system receive a signal from the sensor?

During the operation of the sensor, the on-board computer (microcontroller inside the machine) defines the specific position of the piston at a certain point of its operation in each of the cylinders. To regulate the operation using the sensor, the process is built according to the following plan:

The crankshaft has a special gear wheel, in which 2 cloves are specifically skipped.
When the crankshaft movement, all the teeth take place next to the DPKV sensor, while strongly distorting the state of its magnetic field.
As a result, pulses are formed in the inductance of the inductance of this device, which are sent to the onboard computer database. In this case, the missing 2 teeth are a starting or zero point, due to which the computer determines the initial position of the shaft.
Next, the computer inside the car counts the number of pulses sent by the device and determines the position of the crankshaft in each period of time.
After that, the reverse signal is sent to the computer to the sensor responsible for the fuel injector triggering, which already gives fuel in the ignition system.

Thus, if DPKV works correctly, the car will work with the greatest productivity by spending the minimum of fuel.

Tip: Learn the cause of the sensor malfunction to you easily help the electric hammers on the VAZ-2110. There is shown the location and combination of all the elements of the car.

Where is the crankshaft position sensor?

This component element is located in the bracket, which is installed in the central pulley area on the generator drive. As a rule, on most modern cars, it is not installed in principle, but with a gap 1-1.5 mm near the design of the gentle pulley.

When faults appear in the crankshaft sensor, the car's on-board computer is deprived of the opportunity to set a number of the characteristics necessary for the operation of the Ignition system:

Calculate the amount of fuel required for injection;
Reveal the right time for injection;
Change the angle of rotation of the camshaft;
Determine, ignition occurred or not (relevant for gasoline engines).

Tip: The appearance of ignition problems affects all machine systems. Often after the fuel system start breaking the steering rail to VAZ-2114.

Basic signs of DPKV fault

The main signs of troubleshooting when the crankshaft position sensor is operating:

The process of "detonation" of the engine (a characteristic knock appears during the operation of the hydrocompensators) during the larger load on the car, when driving on high mountain surfaces on low revs.
The engine works unstable - a sharp drop of revolutions at idle is replaced by the same increasing increase. Also, your car can simply stall when working in both in the process of driving along the track and when stopping for a while, for example, on the traffic light.
The motor does not gain momentum, although it works at full power.
The motor power periodically drops and rises in the absence of any external factors affecting this process.
The aerodynamic characteristics of the car are significantly reduced.
There are problems when starting the engine (quickly stalls or not start).
Spark disappears when Ignoring the system - either does not appear, or may not be absent.

In case you have found at least 3 signs from the above, it means that the problem lies in the crankshaft position sensor.

Tip: The specified fault list may also testify to the appearance of other problems when operating the engine. For example, sharp drops in the power of the motor and the reduction of revolutions may indicate a blockage in the fuel pump itself. That is why before repairing you need to diagnose not only the engine, but also the same wheels. What pressure indicators should be on the standards, you can see in the tire pressure table.

How can I check the health of DPKV?

Now, 3 methods can be distinguished from the most popular methods that are conducted quickly and with high accuracy give information about the sensor performance.

When measuring resistance, the winding kit on the sensor can use a special device - an ohmmeter (or in a different multimeter). When checking the device must show a value in the range of 550-750 Ohm.

This type of check is the basic and most elementary, but to give 100% confidence in the serviceability of parts it cannot.

Crankshaft position sensor diagnostics

The second method of checking the sensor for performance is considered more time consuming and requires a whole range of instruments that are only in car service. To carry out work, you will need:

Megaommeter model;
Special network transformer data decryption;
Standard sample inductor meter;
Normal digital voltmeter.

Tip: When checking DCPV, you need to maintain the temperature in the range of 20-22 degrees. This is necessary to display the correct indicators received by the instrument network.

Diagnostics of signal feed sensor with a crankshaft position using an oscilloscope

Stages of performance testing:

A black clamp is connected, called the "crocodile" among specialists, to the mass of the vehicle being checked;
Next, the probe is set to the parallel to the signal terminals of the sensor itself (the characteristic connector with the designation of the terminal of the letter A);
Then the second oscilloscope detection connector must be connected to the corresponding analog input to the computer where the program is installed;
With the correct connection of all components, you will see a signal from an oscilloscope on the monitor screen as a graph with a signal voltage directly at the DCPV input;
To analyze, you need to select a special display mode of the constructed oscillogram - it calls "inductive_crankshaft". After that, it remains only to start the engine of the car and track the value obtained from the sensor.