LADA Granta cars have been produced for quite a long time and have several modifications both in terms of body and engines. In addition, this car has undergone a serious restyling, which also affected the power plants.
Based on this, owners are faced with a certain variety of both electronic engine control units and related electronics: for example, mass air flow sensors.
Where is the DMRV located?
The sensor is located between the air filter and the air supply hose (pictured No. 13).
Catalog numbers of mass air flow sensor on LADA cars:
- Lada Priora, Kalina and Niva 4x4 – 21083-1130010-20.
- Lada Granta and Kalina 2 – 11180-1130010-00.
- Lada Vesta, Largus and XRAY - no mass air flow sensor. Modern VAZ engines (21127, 21129, 21179) and Renault engines (K7M and K4M) do not have a mass air flow sensor; instead, an absolute pressure sensor (APS) and an air temperature sensor (ATS) are installed.
What product is suitable for cleaning
To clean the air flow sensor efficiently, you need to choose the appropriate cleaning agent.
The following may be suitable for this procedure:
- Liqui Moly liquid;
- alcohol;
- carburetor cleaning fluid;
- “Liquid Key” product;
- WD-40.
Liqui Moly liquid is the highest quality product that can be used to clean the sensor. But at the same time, it is also the most expensive of cleaning products. Recently, WD-40 has become increasingly popular among car enthusiasts.
Attention! If you decide to clean the sensor with alcohol, do not use vodka or moonshine instead. This may lead to permanent failure of the device.
Checking the mass air flow sensor with a multimeter
1. Check the voltage on the mass air flow sensor block:
- Set the multimeter to voltmeter mode.
- Remove the connector with the wires from the mass air flow sensor (snap off the lock).
- Turn on the ignition.
- We connect the negative probe of the device to the engine ground, and the other to terminal No. 2 of the block (there is a number on the block).
- We measure the voltage at terminal No. 4 of the block.
The voltage at pin No. 2 should be at least 12 V , and at pin No. 4 about 5 V. If the device readings are different, it means the battery is discharged, the power circuit or the computer is faulty.
2. We check the Bosch mass air flow sensor on Lada Priora and Kalina 1 (with article numbers: 0 280 218 004, 0 280 218 037, 0 280 218 116):
- Set the multimeter to voltmeter mode. (measurement limit 2 V).
- Turn on the ignition.
- We connect the “negative” probe of the device to terminal No. 3 , and the other to terminal No. 1 .
Compare the device readings with the table:
| Voltage, V | Air flow sensor condition |
| 0.996. 1.01 V | Voltage of the new mass air flow sensor |
| 1.01. 1.02 | Good condition of the sensor |
| 1.02. 1.03 | Normal sensor condition |
| 1.03. 1.04 | Sensor life is coming to an end |
| 1.04. 1.05 | “Near-death” state, if there are no negative symptoms, then we continue to exploit |
| 1.05. and higher | It's time to replace the sensor |
Checking the mass air flow sensor is also shown in the video:
Another way to check the mass air flow sensor is to replace it with a known good one.
Have you encountered a malfunction of the mass air flow sensor? If the mass air flow sensor turns out to be in good condition, and there are problems with the engine, read “Why the engine shakes, jerks, or pulls poorly” and “Why the speed fluctuates.”
The Lada Granta Liftback model is equipped with a number of digital and mechanical sensors for transmitting data to the electronic engine control unit (ECU).
During engine operation, information is summarized at the digital level, the ECU “makes” a decision on each indicator, adjusting the system for maximum performance.
The total number of sensors is over ten. They are installed around the entire perimeter of the car. The lion's share falls on the engine compartment, the front part of the car's interior.
If you have experience, the car owner can replace most scanners himself. Contacting service is necessary in the event of a critical breakdown.
DMRV itelma 1118 1130010 analog
Schematic electrical diagrams, connecting devices and pinouts of connectors
Based on the signal from the mass air flow sensor (MAF), the cyclic filling of the cylinder is calculated, which is ultimately converted into the duration of the injector opening pulse. If it does not work correctly, the car consumes more gasoline than necessary. Such a sensor is installed on the second path, immediately behind the air filter and connected to the electrical system, which is controlled by a six-pin block of wires.
There are quite a few different types of mass air flow sensors: mechanical, ultrasonic, hot-wire and some others.
In this case, we will consider the design of the HFM-5 hot-wire sensor from Bosch, which is most often installed on VAZ cars.
The sensor's sensitive element is a thin film on which several temperature sensors and a heating resistor are located.
In the middle of the film there is a heating area, the degree of heating of which is controlled using a temperature sensor.
VAZ 2110 vibration in the body when driving
On the surface of the film, on the side of the air flow and on the opposite side, two more thermal sensors are located symmetrically, which record the same temperature in the absence of air flow. In the presence of air flow, the first sensor is cooled, and the temperature of the second remains unchanged, due to the heating of the air flow in the heater zone. The differential signal of both sensors is proportional to the mass of passing air.
- 1 - dielectric diaphragm
- H - heating resistor
- SH - Temperature sensor naked. resistor
- SL - Air temperature sensor
- S1 and S2 - temp sensors before and after the heater.
- QLM - air flow mass
- t—temperature
The sensor's electronic circuit converts this signal into a constant voltage proportional to the air mass. This design is called Hot Film (HFM), its advantages include high measurement accuracy and the ability to record reverse air flow, but its disadvantages include low reliability in conditions of contamination and moisture.
To measure the amount of air that enters the engine means to determine the engine load. When the driver presses the gas pedal, the throttle valve opens and the amount of intake air increases. At the same time, we say that the load has increased.
When you release the pedal, the load drops. It's quite simple. However, this is only at first glance.
If we take into account the fact that in real driving conditions the engine often changes operating modes and the incoming air in the intake system participates in several gas-dynamic processes, then the problem of measuring the air in the system is not so simple.
In older systems (ECU January-4 and GM-ISFI-2S), other hot-wire mass flow sensors were used, the sensitive elements of which were made in the form of threads. Such sensors are called Hot Wire MAF Sensor.
The output signal of these sensors was frequency, that is, depending on the air flow, it was not the voltage that changed, but the frequency of the output pulses.
The sensors were less accurate and did not allow registering reverse flow, but these shortcomings were offset by very high reliability.
Several types of mass air flow sensors were installed on VAZ cars: GM, BOSCH, SIEMENS and Russian-made. In 1999-2004 Two types of sensors were installed on VAZ cars: 0 280 218-037 and 0 280 218-004.
These sensors produce different output voltage (calibration) parameters at the same air flow rate and interchangeability (or rather, replacing 004 with 037) is only possible with the replacement of calibration tables in the firmware.
The same applies to the new sensor 116, which has been installed as standard since the beginning of 2005.
The sensor is supplied only assembled, with a code and marked with a green circle.
On some classic cars, together with the January 7.2 ECU, Siemens-VDO sensors (5WK97014. AVTEL) were used:
They differ in calibration (from zero volts) and connection diagram.
Lada Granta 2012, 98 l. With. — electronics
Cars for sale
Lada Granta, 2019
Lada Granta, 2013
Lada Granta, 2016
Lada Granta, 2019
How to check the mass air flow sensor with a multimeter or while driving: symptoms of a malfunction
The mass air flow sensor (MAF or flow meter) is an important part of the car, the proper operation of which determines the engine power and its fuel consumption. You can find it under the hood of the car, where it is located between the air filter and the air pipe directed to the throttle valve.
The task of the mass air flow sensor is to measure the amount of air passing into the cylinders and transmit this information to the electronic control unit, that is, the “brains” of the machine. Based on the data from the mass air flow sensor, the control unit decides whether to increase or decrease the air supply to the combustible mixture.
If a mass air flow sensor fails, it is almost never repaired, but simply replaced with a new one.
Its design is quite simple, and it consists of a housing in which a device for measuring air flow is placed - a hot-wire anemometer.
It is enough to damage the diagnostic device during the process of dismantling the mass air flow sensor or cleaning it, and the entire sensor will need to be replaced. It can also fail after a long service life, but you can verify its malfunction only after checking.
Engine mounts signs of malfunction
see also
What is each Lada Granta Liftback sensor responsible for?
Coolant temperature sensor (DTOZH)
Used to monitor the temperature of the liquid (antifreeze) in the cooling system of the power unit. Based on the data received from the scanner, the ECU increases (lowers) the crankshaft rotation speed in order to maintain the optimal degree.
The qualitative and quantitative composition of the fuel mixture depends on the correctness of the DTOZ readings. DTOZH has a long service life and fails extremely rarely, only in the event of mechanical damage from the outside.
The standard installation location is the thermostat cover.
Knock sensor (DS)
The DD is installed to record high-frequency vibrations inside the cylinder and engine block. The cause of detonation is poor quality fuel and incomplete combustion in the chamber.
In order to set the maximum ignition timing, the DD scans the sequence (moment) of ignition of the combustible mixture. In the Lada Grant, the DD liftback is installed between the second and third cylinders.
Cannot be repaired or prevented.
Crankshaft position sensor (CPS)
The ECU calculates the number of pulses to control the fuel injectors and ignition coil.
If there is a malfunction or unstable operation, the power unit will not start. Standard installation location: surface of the oil pump cover.
Camshaft position sensor (DF phase sensor)
The DF is installed to transmit a signal to the ECU about the position of the cylinder at the top (bottom) dead center. This allows you to quickly respond and correct the enrichment (leanness) of the fuel mixture.
If the DF is faulty, the ECU automatically goes into emergency mode, which negatively affects engine performance. There are difficulties with starting, detonation at idle, a drop in acceleration dynamics, and increased fuel consumption.
The DF cannot be repaired, only replaced with a new one.
DBP and DTV
The absolute pressure sensor and temperature sensor Grant Liftback are installed in one housing - a block. The standard location is the reverse line of the modular inlet.
DBP and DTV are not subject to partial repair and prevention; only replacement with a new one is possible.
Oxygen sensor (OS). Lambda probe
The scanner evaluates the amount of unburned fuel and the concentration of exhaust gases. The data is transmitted in the form of a signal from the ECU, where the percentage ratio of fuel and oxygen is adjusted.
Dislocation: the outer surface of the Lada Granta Liftback catalyst, which is installed on the rear side of the engine, in its lower part.
Mass air flow sensor (MAF)
The importance of the functioning of this meter is underestimated by many, but in vain.
Correct and accurate calculation of the supplied amount of oxygen will ensure maximum performance of the power unit.
The air flow sensor cannot be repaired, only replaced with a new one.
Speed sensor Lada Granta Liftback (DS)
Its main purpose in the Lada Granta Liftback is to measure speed online and transmit data to the dashboard.
Incorrect operation or failure makes it difficult to determine the speed at which the driver is moving at a particular moment in time. This is unsafe, since failure to comply with the speed limit increases the emergency situation on the road.
The standard location of the Lada Granta Liftback speed sensor is: the upper contour of the crankcase, above the drive housing on the right side. Despite the fact that the design of the scanner is quite simple, it cannot be repaired.
Oil pressure sensor (OPS)
The DDM is located on the rear side of the cylinder head, near the timing belt.
The purpose of the meter is to monitor the level of engine oil in the cylinders and crankcase of the power unit. And also, timely notification of the ECU about a low (critical) indicator. In turn, the ECU informs the driver through an indication on the dashboard.
A malfunction of the DDM leads to catastrophic consequences, including a major overhaul of the engine. Due to the lack of indication on the dashboard, the driver is not able to quickly respond to possible breakdowns.
Valve length adjustment sensor in the intake system (VNDK)
Automatic adjustment of valve length on the intake stroke will allow you to achieve maximum engine power. Malfunction or unstable operation of the DNDC leads to a decrease in power, increased fuel consumption, and detonation during idling.
Connection diagram for air flow sensor 2114
A common cause of incorrect operation of the mass air flow sensor is the failure of electronic components, which increases the sensor’s response time to changes in air flow. A working sensor monitors changes at a speed of 0.5 ms, and if it breaks down, the response time increases by 20-30 times. The defect is detected only by recording the operation graph with an oscilloscope. Such a sensor cannot be repaired; it must be replaced with a new one.
Catalog numbers and cost of sensors on Lada Granta Liftback
| № | Name | vendor code | Price, rub.) |
| 1. | DTOZH | 21911-3858452-05 | from 250 |
| 2. | DD | 21911-385506981 | from 350 |
| 3. | DPKV | 21911-169834-00 | from 600 |
| 4. | DF | 21911-1164010-00 | from 400 |
| 5. | Lambda probe | 28165997 | from 1000 |
| 6. | Mass air flow sensor | 280216349 | —/— |
| 7. | DS | 21911-3846491 | from 300 |
| 8. | DDM | 21911-1165402-00 | from 550 |
| 9. | DNDC | 21911-1196715-00 | from 650 |
| 10. | DST | 21911-1168234-11 | from 350 |
*prices are current as of October 10, 2018.
Principle of operation
The principle of operation of the mass air flow sensor can be based on counting Kraman vortices or shifting the potentiometer slider by means of a blade mounted on the air supply flow.
The first option is considered more reliable, since it is not equipped with moving structural elements. In this case, the device counts Kraman vortices appearing in laminar air flow. On the way of the latter, special obstacles with sharp edges are used as resistance. An air flow breaks off from them, which linearly depends on its speed. This type of controller only works if there is turbulence in the air.
If the air speed is too high, it can lead to the formation of parasitic pressure pulsations. Therefore, the design of the devices is often supplemented with an input for changing the sensitivity of the measuring component. This may be required at low air flow rates when the power unit is idling.
The StarsAuto channel talked about the design features, as well as the operating principle of automobile flow meters.
If the sensor is equipped with a measuring potentiometer, it operates on the principle of slider displacement. Its working blade is equipped with a spring and is installed in the flow of consumed air by the motor. If it increases, a proportional displacement of the blade occurs. The flow has a pulsating nature; accordingly, to reduce the effect of pulsations, the controller blade is connected to a damper. A potentiometer slider is also associated with it, which, when the sensor operates, moves to a level proportional to the volume of air flow.
Recommendations for selecting sensors
In order not to delay the repair time due to the purchase of low-quality spare parts, service station technicians recommend purchasing only original parts.
When choosing a component manufacturer, always give preference to factory parts. Check the index matches carefully. An exhaustive list is provided in the operating instructions.
Buy analogues less often, even if they are more expensive than the “originals”. Do not use the services of dubious suppliers who sell spare parts at unusually low prices.
If you do not have personal experience in servicing a technical device, install the components at a service center, where they provide a quality guarantee for the work performed.
Purifier selection options
How to clean the flow meter? The modern market offers many products for cleaning regulators; let’s look at the most effective options:
- Liqui Moly. This manufacturer, as you know, produces not only cleaning products, but also motor and transmission oils, as well as other types of liquids. If you believe the official information provided by the manufacturer, then this product belongs to the high-quality category. Accordingly, the cost of such a MAF cleaner will also be high. In fact, Liqui Moly cleaners cope with their tasks quite effectively - this product perfectly removes dirt from the sensor. If the flow meter was in working order at the time of cleaning, then after that it will work for a long time. The use of Liqui Moly is relevant in both gasoline engines and diesel power units.
- Alternatively, you can use alcohol to clean the device. This method is considered one of the oldest, but nevertheless the most effective. Due to its chemical properties, alcohol is good at removing clogs that accumulate on the sensitive component of the air flow sensor. Despite its effectiveness, today this method is not used so often and is usually used by unscrupulous technicians at service stations. The client pays for a special substance, for example, Liqui Moly, and in fact the cleaning is carried out using alcohol.
- The next option is fluid for carburetor engines. This option is considered one of the most effective and frequently used. Using carburetor fluid, you can effectively clean it, and as practice shows, such a product allows you to remove all contaminants.
- Another product sold in spray form is Liquid Key. This cleaner is used to remove all kinds of contaminants, not only from the flow meter, but also from other mechanisms and components.
- A universal tool for performing many tasks is WD-40. This liquid is used by our compatriots to clean all kinds of components, remove rust, get rid of squeaks, etc. Not so long ago, our car enthusiasts began to use it to clean flow meters (the author of the video is the Gen channel MB W140 Germany).
Reviews
| № | Positive |
| 1. | Vladimir: for a year and a half of Grant’s operation, there were no problems with the performance of the sensors. Everything is in good condition. |
| 2. | Kirill: I corrected the contact on the mass air flow sensor once. The reason is not the meter, I just caught the block with the wires with my hand while replacing the air filter. No complaints, the quality is good. |
| 3. | Vasily: in two years of using Granta, I replaced the antifreeze temperature meter once. In all other respects, no comments, satisfied with the quality. |
| 4. | Gregory: after buying the car from the dealership, I checked all the terminals and wires myself. Some tightened up, now the machine works like a watch. |
| 5. | Vyacheslav: I have no complaints, the car is three years old, I haven’t made any investments. I believe that systematic inspection helps prevent large-scale breakdowns. |
| 6. | Vladimir: The electronic control unit is working properly, there are no comments. Digital sensors transmit information in a timely and complete manner. |
| Negative | |
| 1. | Alexander: I can’t speak positively about the factory devices, since I replaced three of them in two years. They fly like air. |
| 2. | Ignat: no matter what I do, the fuel sensor incorrectly displays information about the amount of gasoline. I'll buy another one. |
| 3. | Ivan: the manufacturing quality of digital equipment is poor, it breaks down every six months. |
Conclusion Despite the negative reviews about the digital sensors on the Lada Granta Liftback, their manufacturing quality is decent. Subject to systematic technical inspection and careful handling of the machine, the service life exceeds the warranty period.
Premature wear of digital equipment can be caused by a short circuit in the circuit, damage to the cable insulation layer and other factors. However, this does not indicate defectiveness and poor manufacturing quality of the scanners.
The injection engine control system uses data from many sensors to form the optimal composition of the fuel mixture. One of them is the mass air flow sensor (MAF LADA Granta). Like any car part, the sensor can fail and cause errors in the operation of the injection system. Therefore, the mass air flow sensor must be changed immediately when signs of malfunction appear.
Where to buy car accessories
Spare parts and other products for the car are easily available for purchase at auto stores in your city. But there is another option that has recently received significant improvements. You no longer need to wait a long time for a parcel from China: the AliExpress online store now offers the opportunity to ship from transshipment warehouses located in various countries. For example, when ordering, you can specify the “Delivery from the Russian Federation” option.
Follow the links and choose:
| Jansite 7" HD Car Monitor | OBDPEAK D90 Car DVR 4GB+32GB Camera Android 8.1 Streaming Rear View Mirror | GPS Speedometer Vjoy C80, 4.5 inches |
| Car Rear View Camera, Rear View Parking System, LCD Monitor | JMCQ USB ADAS Car DVR Full HD, Android | Universal car alarm, remote control |
Design and principle of operation of the LADA Granta mass air flow sensor
The purpose of the mass air flow sensor is to control the amount of air flowing from the air filter into the engine. The LADA Granta mass air flow sensor is installed on the pipe between the throttle valve and the filter and measures the flow speed in a simple and original way: by monitoring the cooling of the electrical conductor. The mass air flow sensor has two platinum filaments through which current passes. The first thread is cooled by the air flow passing from the filter, the second is a control thread. By cooling the first thread, the resistance decreases in proportion to the strength of the air flow. Accordingly, the engine ECU receives information about the amount of incoming air and can ensure the optimal ratio of the components of the air-fuel mixture supplied to the combustion chambers.
Checking and repairing at home
There are eight ways to independently check amplitude and frequency mass flow sensors.
Method No. 1 - disabling the air flow meter
The method consists of disconnecting the sensor from the fuel system of the car and checking the functionality of the system without it. To do this, you need to disconnect the device from the connector and start the engine. Without a mass air flow sensor, the controller receives a signal to switch to emergency operation mode. It prepares the air-fuel mixture only based on the throttle position. If the car moves faster and does not stall, it means that the device is faulty and requires repair or replacement.
Method No. 2 - flashing the electronic control unit
If the standard firmware has been changed, then it is unknown what reaction of the controller is programmed in it in case of an emergency. In this case, you should try to insert a 1mm thick plate under the throttle stop. The turnover should increase. Now you need to pull out the chip from the air flow meter. If the power unit continues to work, then the cause of the malfunction is the firmware.
Method No. 3 - installing a working sensor
Install a known good part and start the engine. If after replacement it begins to work better, the motor does not stall, then replacement or repair of the device is required.
Signs of malfunction of the LADA Granta mass air flow sensor
The simplest and most noticeable sign that there are problems with the mass air flow sensor is the “CHECK ENGINE” light on the panel and the corresponding error code of the on-board computer. The following signs also indicate a malfunction of the mass air flow sensor:
- unstable, high or low idle speed;
- increased gasoline consumption;
- weakened engine dynamics and power;
- problems with starting the engine, especially when it is hot.
The listed signs do not necessarily indicate a breakdown of this particular part, however, if they appear, it is necessary to check the LADA Granta mass air flow sensor. If the inspection confirms a breakdown, it must be replaced.
Tip: The mass air flow sensor may not work properly if the air pipe is damaged, so before checking the sensor, you should make sure there are no cracks or breaks in the pipe.
Possible sensor malfunctions
In Granta Lada and Kalina cars, the mass air flow sensor located in the engine compartment usually fails due to wear and tear, when the lifespan of the controller comes to an end.
In the event of a malfunction, the car owner will encounter the following symptoms:
- The Check Engine indicator appears on the instrument panel and goes out after the engine starts;
- if the device malfunctions, fuel consumption will increase;
- the power output of the unit as a whole will decrease;
- the dynamics of the car will also be disrupted, and when you press the gas pedal, the driver will notice that the car is having difficulty picking up speed;
- the driver may also encounter the problem of being unable to start the engine, or starting the engine will be very difficult;
- When driving at idle, the engine speed will float (the author of the video is the IZO channel))) Methods).
How to check the MAF of the LADA “Granta”
It is possible to absolutely accurately assess the performance of the mass air flow sensor only if you have special expensive equipment (motor tester). However, there are three simple and reliable methods: visual inspection, disconnecting the sensor and checking with a multimeter. A visual inspection of the mass air flow sensor allows you to “by eye” assess the serviceability of the part. To inspect the sensor, you need to loosen the air pipe clamp and remove the latter. The inner surface of the corrugation and the mass air flow sensor must be clean, without signs of oil deposits. You should also make sure that the corrugation is not damaged and does not “suck” air past the air filter and sensor. The next stage of inspection is removing and checking the sensor itself. To do this, you need to unscrew the two mounting bolts and remove the sensor from the filter housing along with the sealing ring. The inlet grid of the mass flow sensor must be free of dust or oil. If the mesh is dirty, you can try simply cleaning it without changing the sensor. When visually inspecting the mass air flow sensor, you should pay attention to the condition of the sealing ring. Often the sensor does not work due to air leaks through a damaged or worn rubber seal ring.
Disabling the mass air flow sensor is the fastest and easiest way to check its performance. It is necessary to remove the connector from the sensor and start the Granta engine and make a test drive. The engine controller will automatically go into emergency mode and the proportions of the fuel mixture will depend only on the position of the throttle valve. If a test drive shows that acceleration dynamics improve with the mass air flow sensor turned off, it is necessary to replace the sensor with a new one.
Checking the mass air flow sensor using a multimeter is only relevant for some Bosch sensors. It is necessary to measure the voltage at the sensor with the engine not running (between the yellow and green wires). If the voltage is within 1.01-1.02 volts, the sensor is working. voltage above 1.05 volts indicates a failure of the mass air flow sensor.
Troubleshooting methods
There are several options for troubleshooting the device:
- Replacing the sensor. The surest way to ensure normal system operation is to install a known working controller.
- Check the connection of the regulator, as well as the functionality of the electrical circuit. It is very rare, but it happens that the regulator refuses to work normally due to oxidation of the contacts on the connector. In this case, you can try to disconnect the sensor and clean the contacts with an iron brush.
- Rinse the device. This option for restoring performance is considered one of the most popular among our compatriots today. Cleaning usually takes a little time, but you have every chance of restoring the functionality of the regulator. Our resource has already written about flushing the device; detailed step-by-step instructions are presented in this article.
How to change the air flow sensor of a LADA “Granta”
The mass air flow sensor cannot be repaired and if it malfunctions, it must be replaced with a new one. Replacing the MAF sensor of the LADA “Granta” is performed as follows:
- Unscrew the clamp with a screwdriver;
- disconnect the connector from the mass air flow sensor;
- Using a 10mm wrench, unscrew the two MAF mounting bolts;
- pull out the sensor with the seal from the air filter housing;
- install a new sensor with an o-ring;
- screw in and tighten the sensor mounting bolts;
- connect the connector.
The MAF sensor has been replaced; all that remains is to check its operation by performing a test start of the engine and a drive.
Replacing the air flow sensor on a Grant with your own hands
The mass air flow sensor on Lada Granta cars can serve properly throughout its entire service life, up to a mileage of 300,000 km. This is not a theory, but the personal experience of many owners who have driven exactly this kind of mileage on such engines (1.6 8-cl) without a single replacement of the mass air flow sensor.
The main reason why this air sensor fails is the fault of the owners themselves. Why is this happening? The answer is simple - untimely replacement of the air filter leads to failure of the mass air flow sensor.
So it is better to change the filter as often as possible, and it is quite enough to do this at least once every 10,000 km, because it costs a penny, and the price of the sensor is 20 times more expensive and can reach 3,000 rubles, depending on the manufacturer.
If you are still unlucky and this part needs to be replaced, then this repair is quite simple, all you need is:
- crosshead screwdriver
- 10 socket head
- Driver or ratchet
The procedure for performing this work is as follows. First you need to disconnect the power supply harness block from the air flow sensor Grants:
After this, loosen the clamp bolt on the inlet pipe that connects the sensor to the throttle:
And then we move the pipe to the side so that during further work it does not interfere:
Now you just need to unscrew the two bolts that secure the air flow sensor to the air filter housing:
And remove the sensor, since there are no other fastenings and it can be easily removed without any extra effort:
Now all that remains is to buy a new mass air flow sensor, which will not cost you that much, and replace it. Installation is carried out in reverse order.
