Error 8 on VAZ 2114 (8 valves) - what it means, symptoms, solutions

When problems arise on VAZ injection cars, decoding can be done without visiting a service station and using a diagnostic scanner, which is inserted into the OBD2 connector. For this purpose, there is a special daily mileage reset button on the instrument panel. With its help, you can enable quick self-diagnosis. VAZ error codes are displayed among the VDO instrument panel indicators at the bottom, in the same place as the firmware version.

For 8 and 16 valve engines, errors on the VAZ 2114 or 2115, their codes and interpretation are identical.

How to do a self-diagnosis

Error codes appear on the display of your on-board computer as a result of self-diagnosis. It is carried out according to the algorithm:

1. On the dashboard, locate the odometer button. Press it and don't let go.
2. Turn the ignition key to position 1 without releasing the button.
3. Release the odometer button.
4. While the computer is scanning, the arrows on the dashboard will twitch. This means you did everything right.
5. Press the odometer button again to display the information on the on-board computer display. After the first press, the firmware numbers for your system will appear on the screen.
6. Pressing the odometer button a second time will cause error codes to appear on the screen.

Most often, during self-diagnosis, you can see two-digit codes that are deciphered using a service passport.

Lamp functions

Dashboard-mounted lighting devices serve two purposes. Some of the light bulbs provide the actual illumination of the dials. This allows the person sitting behind the wheel to freely take readings from them, even when it is completely dark outside.

Other products are control. They are indicators that confirm the switching on of certain devices (headlights, headlights, etc.) or indicate problems. Making the panel more aesthetically pleasing is just an additional function.

In what cases does error 8 appear after self-diagnosis?

Error 8 on the display means that the power controller during the diagnostic process transmitted a signal: there is insufficient voltage in the VAZ-2114 electrical network with eight valves. In this case, you need to check:

• failure of the generator or its brushes;
• The battery does not hold a charge or discharges quickly.

You can get rid of this error yourself by charging or replacing the battery. If this does not help, then you will have to get to the generator and replace its brushes.

Removing the error from the device memory

This procedure is used in three cases:

• the occurrence of an error blocks the ability to operate the car (you need to get to the service station under your own power);
• a complete check of all components was carried out and no fault was found;
• The damaged part has been repaired or replaced.

To reset the on-board control system data, you must remove all terminals from the battery and then plug it back into the vehicle's power circuit. It will only take a few seconds to disconnect the battery. After this, the error record will be erased from the system memory. If you want to carry out this procedure for further operation of the vehicle, then remember that the trip should be short - to the nearest car service center.

Checking and preparing for use of the battery

First of all, you need to learn how to care for the battery, charge the battery in order to extend its service life.

Experts recommend doing the following:

1. Remove the battery and wipe it with a rag. Pay more attention to cleaning dirt from the top of the battery.
2. Now you can inspect the battery, paying attention to the electrolyte level. It should be the same in all flasks. If necessary, you can add electrolyte.
3. The battery must be charged with a current of 5.5 A for 10 hours.
4. During the process, the battery can heat up to +40 °C, which is considered normal. If you think that the battery is too hot, you should interrupt charging and wait until the battery cools down. It is because of the strong heat that it is recommended to charge the battery in a cool room and away from other electrical appliances.
5. If the electrolyte temperature exceeds +45 °C, then you can not stop charging, but reduce the current by half.
6. Before charging, it is worth measuring the battery capacity; after the recharge period has expired, it should increase by 1.5 times. If for some reason it has not changed or increased not so much, then it is worth replacing the battery.

When charging the battery, you must pay attention to the instructions that come with the charger and the recommendations of the battery manufacturer. Battery failure is caused by deep discharge and difficult operating conditions - sudden temperature changes, cold starts in winter. Therefore, error number 8 in the VAZ-2114 with eight valves most often occurs at the beginning of winter (after the first serious frost) or in the spring.

Which bulbs are suitable for the 2114th model

In general, the current legislation provides for quite serious sanctions against motorists who dare to make any changes to the design of the vehicle at their own discretion. In accordance with the rules, they are obliged to replace components and assemblies only with analogues of those chosen by the manufacturer. Failure to comply with this requirement provides grounds for punishment of the driver.

Fortunately, this standard applies to the dashboard purely formally. The owner only needs to ensure proper illumination intensity and proper operation of the display.

Thus, more and more owners are installing LED lamps on their 2114 Ladas instead of the standard halogen ones. This choice is easy to justify. In particular, they:

• consume approximately 8-9 times less electricity, which means the load on the on-board power system is reduced;
• last 5-10 times longer;
• give brighter light;
• practically do not heat up.

Finally, the dashboard looks much more attractive, because the light bulbs can be of different colors - blue, red, green, etc.

The problem is that LEDs cost about twice as much, but this disadvantage is more than compensated by their longer lifespan. In addition, LED lamps are becoming cheaper every year.

How to replace generator brushes

If you recently updated the battery on your VAZ-2114 with eight valves, then the reason for the lack of current in the power supply may be hidden in the generator. There is one weak link in this unit - the current collection brushes. They periodically wear out and stop performing their task. Each car enthusiast can change the brushes himself according to the instructions:

1. You need to disconnect the negative terminal from the battery. Then find the block of wires leading from the generator and remove it. To do this, you need to remove the cap from the positive side of the wires and unscrew the nut that secures them to the generator block.
2. A plastic cap of the generator block will appear in front of you, which is secured using three spring clips. You will need to remove these fasteners to remove the alternator housing.
3. Using a Phillips screwdriver, unscrew the fasteners to remove the voltage regulator along with the current collectors.
4. Disconnect the wires from this node.
5. Now all you have to do is inspect the condition of the brushes and, if necessary, install new parts on the generator. After this, reassemble the generator unit in the reverse order and check the car again.

If the current collectors of the VAZ-2114 are visually intact, then you need to continue disassembling the generator unit in order to replace it entirely. In most cases, the power, even if the brushes and battery are intact, disappears due to wear of the generator bearing or its coil. To avoid guessing what went wrong, install a new one in place of the old one. In this case, you will be absolutely sure that after assembly the car will not let you down.

Is a dual exhaust system necessary?

Before answering this question, let’s look at history and figure out what’s what. So, the need to install two exhaust manifolds has appeared since the invention of V-shaped engines, in which the cylinders are located at an angle. The result is one exhaust manifold for each side (line) of the cylinders. In other cases (with an in-line arrangement), one exhaust pipe is installed. The situation is a little different when car enthusiasts, in order to create decorative, visual improvements, make a branched one out of a single release. This gives the impression that the engine has a dual exhaust system. In other words, tuning the exhaust system gives your car only external changes and does not affect the operation of the engine.

Conclusion:

1. From a technological or design point of view, there is no need for installation.
2. From a tuning standpoint, this is an excellent, safe and inexpensive solution.

Error 8 on VAZ 2114 what does it mean

The VAZ-2114 is based on mechanics, so for many drivers it comes as a real surprise that the car has self-diagnosis. This allows you to avoid checking the operation of the machine at a service station using expensive equipment; the fault can be determined with your own hands at any convenient time, and then quickly eliminated.

Diagnostics of the VAZ-2114 involves displaying an error code on the on-board screen, which indicates a specific breakdown. Error 8, displayed on the panel, stands for insufficient voltage in the machine network. We will tell you how to fix the problem, but first we will teach you how to enable self-diagnosis of the VAZ-2114.

What codes should you pay special attention to?

Every VAZ-2115 car owner must pay attention when connecting automotive wall equipment to the following codes:

1. P0562 or P0563, indicating a low or high voltage level in the electrical on-board circuit.
2. P0506 or P0507 will indicate an incorrect idle speed setting, in particular, this error applies to the VAZ-2115 8-valve injector.
3. P1301 or P1304 will help the car owner find out about a faulty car cylinder.
4. If the cylinder injectors are not operating correctly, the on-board computer monitor will display codes starting with the value P0201 and ending with the code P0204.
5. If the car computer displays code P0217, you should immediately stop operating the car, as the error will indicate engine overheating.
6. P0300 will indicate a serious engine breakdown, which manifests itself as periodic fuel ignitions.
7. Code P0304 will indicate a misfire occurring in the fourth car cylinder.

Every VAZ-2115 owner must understand that system diagnostics, which use data generated by certain sensors, are far from perfect. Therefore, it is best to entrust this task to professionals working at the service station.

When connecting bench equipment, you must pay attention to the following numbers:

1. Problems with the electrical circuit of the board at a low voltage level are displayed by the combination P0562, and at a high voltage level - P0563.
2. Incorrect setting of the injector idle speed (on the VAZ-2115 it has 8 valves) manifests itself as code P0506 at too low speeds or P0507 at high speeds.
3. If a malfunction occurs in one of the cylinders, this may be indicated by one of the errors from P1301 to P1304 (inclusive).
4. If the injectors on each cylinder do not operate correctly, then errors will be in the range from P0201 to P0204 (inclusive).
5. If combination P0217 occurs, you should stop using the car, as it indicates an increase in engine temperature.
6. A dangerous symptom is the occurrence of error P0300, which means random and multiple misfires of the fuel. In this case, you may need major car repairs. A related fault is code P0304, which means misfire in the fourth cylinder.

At the service station, conclusions are drawn not only from the on-board computer, but also from data obtained from an independent study of the vehicle’s systems. In this case, repairs can be carried out in a shorter time and at lower costs.

The first character means:

• B - malfunction of car body elements;
• C - problems with the suspension or chassis;
• P - malfunction of the power and transmission units, as well as the engine control unit;
• U - problems in the operation of information exchange buses.

The second character in the code means:

• 0 - standard SAE type;
• 1, 2 - factory type of fault;
• 3 - reserved.

The third character identifies the system in which the problem is detected:

• 1 and 2 - problems with fuel units;
• 3 - ignition unit and mechanisms connected to it;
• 4 — system for reducing exhaust gas toxicity;
• 5 — idle speed of the power unit;
• 6 - electronic engine control module and wires connected to it;
• 7 and 8 - transmission unit.

The last two characters are a number that corresponds to the error number in the OBD system.

When malfunctions occur in the operation of the engine or other systems, the “Check Engine” indicator is always on on the VAZ dashboard. Its presence may be due not only to a malfunction of the power unit, but also to problems with the wiring or poor contact of one of the sensors.

Instructions for self-diagnosis of VAZ-2114

To enable self-diagnosis in a domestic car, take the driver’s seat and sequentially perform the following manipulations:

1. Find the odometer key on the instrument panel, press and do not release.
2. At this time, turn the key in the ignition, setting format 1.
3. The odometer key can now be released.
4. Observe what changes occur on the instrument panel, namely the arrows should jump.
5. Press the odometer key again and release it again, after which numbers indicating the firmware of the vehicle’s on-board computer are visible on the speedometer.
6. All that remains is to press the odometer key a third time, and then remove your hand, and the display of a combination of faults on the screen will not take long. Please note that at a service station the error consists of 4 digits; if you diagnose it yourself, it assumes 2 digits.

Diagnostics using special equipment

1. Diagnostic connector

2. Connecting a wire with an adapter to the diagnostic socket

3. Connecting the wire to the computer

4. Running software for testing

The diagnostic process using special equipment consists of checking the car using a laptop. To connect to the diagnostic connector you will need a cable with an adapter. Using this cable, we connect the computer to the connector via USB output. For testing you will also need software; the power of the computer used is not important. There are many versions of different testing programs on the Internet.

Diagnostics is performed as follows:

1. It is recommended to inspect the vehicle before starting the inspection. Check the volume of consumables - engine oil, brake fluid, coolant.
2. Find the diagnostic connector and connect your laptop to it. If you have a special scanner, then that's even better. But since finding a scanner is not so easy, and buying one is not cheap, you can use a laptop. Before testing can begin, the ignition must be activated. There is no need to start the power unit.
3. After connection, the testing utility starts. The software interface may vary. When you launch the software, graphs or a list of parameters with numbers may appear. This information will allow you to draw conclusions about the operation of the power unit.
4. The scan starts. Fault codes will appear on the laptop screen. To decrypt, use the information provided in this article. We could not describe all the codes, but we deciphered those that occur most often. Usually, when downloading a program to a computer, users are provided with a separate file describing the faults.
5. After decryption, the problem is repaired.

What does error 8 mean and how to fix it

Error 8, reflected on the on-board computer of the VAZ-2114, means low voltage on the on-board network. Reasons that can cause a decrease in voltage in the VAZ-2114:

• the battery is almost completely discharged;
• erasing or “freezing”, lack of adequate operation of the brushes on the generator.

That is, you can remove error 8 and correct problems in the operation of the VAZ-2114 by charging the car battery or replacing the brushes on the generator, and all this can be done without turning to specialists, in your own garage with your own hands.

Why do light bulbs fail?

The main reason for the relatively rapid burnout is rather difficult operating conditions. Reduce resource:

• voltage fluctuations;
• vibration;
• overheating (in a closed space of the instrument panel this is normal).

In addition, filaments have a short service life of only 1500 hours.

In addition, lamps may stop working due to:

• wiring damage;
• destruction of board tracks;
• contact oxidation;
• blown fuses due to short circuit, etc.

For this reason, before replacing a light bulb in a Lada 2114, it is advisable to find out why it stopped working. Until the root cause is identified, the situation cannot be corrected.

How to charge a VAZ-2114 battery yourself

You need to know how to charge a VAZ-2114 battery not only if self-diagnosis shows error 8. Correct and timely charging of the battery will extend its life. To do this, follow the recommendations of experts:

1. Remove the battery and carefully go over it with a cloth, your task is to thoroughly clean it from dirt. Focus on the top of the piece.
2. Now check the electrolyte load indicators. According to service station workers, the electrolyte level should be between the minimum and maximum icons located on the battery case. If the electrolyte is not enough, it must be added to the norm.
3. Charge the battery when the plugs are turned out with a current of 5.5 A. Also monitor the density of the electrolyte.
4. While charging, the battery can reach a temperature of 40 degrees, this is the maximum allowable value. However, experts believe that even this figure is too high - it is necessary to lower it to 27 degrees by interrupting battery charging.
5. When should charging be completed? If a large volume of gas comes from the battery, the electrolyte voltage and its density are kept constant. 3 measurements are taken as a basis.
6. If the density is different, then it needs to be adjusted. The increased density can be reduced by adding distilled liquid to part of the material. If it is low, use the method of adding electrolyte with increased density.
7. When the adjustment has been made, do not remove the battery from charging for up to half an hour, then turn it off and check the electrolyte readings after half an hour. If the material level is too high, use a rubber blower to remove excess material.

Recovery

Is it possible to restore a broken sensor? This can be done only in one case - if the cause of the malfunction is poor contact and the sensor itself is working normally. You can also try removing the carbon deposits inside. But to do this, you need to take the sensor out and lower it into an aggressive environment (white spirit or gasoline).

Please note: do not use sandpaper, needle files or other rough objects for cleaning. To avoid damaging the tip, use a soft cloth soaked in solvent. By treating the sensitive element with white spirit, you can restore the functionality of the sensor. But it is not a fact that after cleaning it will take accurate measurements. Ideally, this element should be changed entirely. Fortunately, the operation is simple, you can do it yourself. We’ll tell you exactly how below.

How to replace generator brushes

To get rid of error 8, which occurred in the VAZ-2114 due to worn alternator brushes, follow these instructions:

1. Remove the wiring harness.
2. Disconnect the rubber cap from the terminals of the plus wires, which is designed to protect the part. To do this, unscrew the wire fixing nut and remove the wires from the generator housing.
3. Remove the black casing, made of plastic, by disconnecting 3 fasteners on spring mechanisms located along the perimeter of the block.
4. Find the regulator responsible for adjusting the voltage and use a Phillips head screwdriver to unscrew it.
5. All that remains is to pull out the regulator along with the brushes attached to it, and then disconnect the wire block.
6. Now replacing the brushes will not be difficult.
7. Installation of the updated VAZ-2114 voltage generator is carried out according to the same instructions, but in reverse order.

Sources

• ladaautos.ru/vaz-2114/chto-oznachaet-oshibka-8-na-paneli-priborov-vaz-2114-i-ee-ispravlenie.html
• ladaprofi.ru/vaz-2114/kak-ispravit-oshibku-nomer-8-na-paneli-vaz-2114.html

Wheel alignment

After replacing wheel rims, the dimensions and bolt patterns of which differ from those provided for by the design of the VAZ 2110, it is necessary to make all the necessary adjustments in order to ensure reliable protection of the entire chassis, as well as tires and arches.

Correct alignment angles are required for each front wheel.

There are three parameters that require correct installation: wheel toe, caster angles of the steering axles, and camber angles of each wheel.

The rules by which the parameters of the front wheel are set are as follows: