Diagnostics of Lada Vesta and Lada X-Ray, error codes and elimination methods

Basics of error codes on VAZ cars - diagnosable components

Today, cars from domestic manufacturers across the entire model range are equipped with the necessary computer diagnostic systems.
But these systems are far from ideal, and even the designers of the plant itself admit this. General sensors are used as the basis for identifying problems; these systems do not provide any specific data in the event of a breakdown. Demonstration of problems with your car is based on some functions, so the codes cannot show the exact problem. For example, there are several sensors on the engine air supply system. Oxygen and its consumption can indeed indicate problems with the unit, but this is not always accurate

The most serious error codes that you should pay special attention to are the following:

• problems with the on-board electrical network - codes P0562 and P0563 indicate low and high voltage levels, respectively;
• codes P0506 and P0507 indicate incorrect idle speed settings - too low and too high;
• four codes indicate a malfunction in one of the cylinders - P1301, P1302, P1303, P1304;
• also four codes are responsible for malfunctions of the injectors on each cylinder - P0201, P0202, P0203, P0204;
• an extremely important code, after which it is better to stop operation - an indicator of increased engine temperature P0217;
• The P0300 code is often a harbinger of the need for major repairs, because it means random fuel misfires.

Most codes are related to the operation of sensors, because this is the easiest way to build a car diagnostic system. Nevertheless, this approach has proven to be effective for owners of domestic cars, because now you can know for sure that some kind of problem has occurred with the car. It no longer makes sense to fix the problem yourself; the car system has become much more complicated.

Therefore, after receiving information about a malfunction, it is best to visit a car service center and carry out diagnostics. Service stations never rely solely on on-board computer data. Often, an independent check of all systems is carried out and the presence of problems is determined by the behavior of the car, the owner’s testimony and other important criteria.

What codes should you pay special attention to?

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.

A diagnostic system based on the operation of each sensor is imperfect. Therefore, it is not advisable to look for the problem yourself.

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.

In conclusion

Error 0523 Lada Granta how to fix the problem
If after the reset procedure these error codes show their presence again, it is recommended to contact a specialist for a more thorough diagnosis of the LADA Kalina on-board electronic complex. This will save not only the owner’s nerves, but also provide a qualified approach to troubleshooting, without aggravating the situation with “independent actions”.

Hi all. Today I tuned the engine and the BC showed the following errors: P0363 - Misfires were detected, the fuel supply was turned off in idle cylinders. P1304 - Misfires were detected, critical for the converter in cylinder 4. This has already happened (tripleting), but there was no BC and I don’t know the codes. Then I changed the spark plugs and everything went away. Now replacing the spark plugs did not help. Who can help with advice? I don’t want to go straight to the service center, I hope I can fix it myself.

Maybe a coil then?

I've read a lot about this problem. Maybe I/O wires, maybe a coil. maybe something wrong with the injectors. Or do the valves need to be adjusted?

Well, I don’t know then, if you change everything at random, it will probably be a little expensive?! or try removing it from the donor)

I'll check the wires tomorrow. if they are ok, I’ll go for diagnostics

it is truth too! write back later, interesting.

I also had triplets, also 8-grade, there was no BC, I took it to the nearest service center for diagnostics. 15 minutes and the verdict - ignition coil Price: 700 rubles + 200 for diagnostics

There was a letter about low-quality coils and their replacement under warranty. In April, one of mine burned out - they replaced it under warranty. Two weeks ago, during scheduled maintenance, everything was changed. The letter itself with the list of cars is here on the forum. www.drive2.ru/c/1082768/

you have 16 valves, and the vehicle has an 8-valve 87 mares, a different engine, a different ignition coil

Why did the spark plugs require replacement the first time? Maybe gasoline with additives and red spark plugs? Are now brick-white spark plugs? Red ones are additives to gasoline based on metal oxides - they create conditions for breakdown of the insulator.

The problem with the injectors should give itself away while driving - it won’t drive normally. The explosive wires, if they don’t touch metal, are also unlikely to be sewn somewhere.

There may also be poor pressure in the fuel rail, and due to the heat (closeness of the exhaust to the intake), there may be vapor locks in gasoline when the pressure decreases - as an option. Under load, gasoline is consumed faster and cools itself. If the BC is multitronics, then you can look at the injection time graph to see if there are any sudden jumps in fuel supply time.

And it’s not entirely clear whether this problem doesn’t go away? I also encountered misfires at home (the multitronics BC showed an error, on the shuttle BC one-time misfires are not yet displayed). I didn’t even understand whether the engine was damaged or not, because... The error occurred 3 times in 2 months at xx after starting the engine.

My spark plugs had a reddish coating, then I immediately changed the gas station, but still didn’t change the spark plugs.

I changed the spark plugs for the first time for prevention. I installed some French ones. There were 3 times when the check light came on, the car stalled and stopped driving. The officials shrugged their shoulders. then I already realized that the problem was in the candles (it was just that during the next “attack” I put in new candles and everything went away), but now it didn’t help. But here’s the thing: in the morning, two days ago, I swapped the VV wires, the second and the fourth cylinder (both on the spark plugs and on the ignition module) and the error changed to 1301 (it was 1304). but I never understood why. In the end, after about 20 minutes the car started moving, I cleared the errors and everything was okay. It seems that only diagnostics will reveal the problem

How to reset errors?

Error p0441 Lada Granta

Upon completion of self-diagnosis, errors must be reset. How to perform this action can be found in the corresponding recommendations of the car manufacturer. In practice, it has been established that the reset procedure is identical to the manipulations to launch a new system check. Here the controllers are reset and the reset itself occurs, which is provided by special software tools present in the ECU software. The procedure is also performed during the next service in case of characteristic malfunctions. For example, code “0171” may be displayed with annoying consistency, indicating low-quality fuel in the LADA Kalina car system of the same name. This should alert the owner to changing the refueling location. Owners also consider “1545”, “0422” and “1426” to be common errors.

Lada Granta errors P0363 P1304

#1 Rexis

Trunk volume of Lada Granta sedan in liters. Overall dimensions of the fret grant. trunk of Lada Granta: how spacious is the compartment of the car?

Users

4 messages

Car make: Lada Granta

Lada Granta 2012 standard 183 8-valve engine.

I started the “warm” car, it started to stall, became dull when accelerating, didn’t pick up from the bottom, and responded very sluggishly to the gas pedal. I got to the garage and threw in a scanner: errors P0363, P0301, P0038. Replaced spark plugs, high-voltage wires, ignition coil. I reset the errors. The result is the same - it crashes, doesn’t drive, the check light flashes again. I spat and left it without the “+” terminal overnight.

The next day the following errors appeared: P0304, P0363, i.e. misfires and lack of fuel supply have already passed to the 4th cylinder.

Actually, where to dig now?

I haven’t changed the fuel filter for a long time, maybe that’s why it looks like this? Either the brain caught a glitch, because... Before all this, the day before, the alarm started to go off on its own (Panther, IMMO is not activated)?

Post edited by Rexis: 12 April 2021 - 08:26

#2 Practitioner

VIP Member

6,730 messages

• Car make: GFL1100, VAZ 11173,)
• From: Novosibirsk, Krasnoobsk

Diagnostics must be done normally, analysis.

0038 - isolate the DK2 wires from the metal, most likely a short circuit.

The rest is misfires: either the fuel supply (pump, injectors, filters), or the electrical part (spark plugs, wires), or iron (wear of the CPG, valve, etc.).

#3 Rexis

Users

4 messages

Car make: Lada Granta

Diagnostics must be done normally, analysis.

0038 - isolate the DK2 wires from the metal, most likely a short circuit.

The rest is misfires: either the fuel supply (pump, injectors, filters), or the electrical part (spark plugs, wires), or iron (wear of the CPG, valve, etc.).

Cool advice. The main thing is practical and vital.

Despite the fact that the post already describes some of the operations. At a minimum, these are not PLUGS, NOT WIRES and not an ignition coil.

As for error 0038. It pops up like a trailer. The same thing happened when the brake pedal position sensor was faulty.

VIP Member

2,879 messages

How to install a fake instead of an oxygen sensor on a Lada Granta

Before installing a lambda probe emulator, let’s figure out why this is done and what the theoretical justification for this operation is. As a rule, when removing the catalyst or one of the oxygen sensors, the ECU is flashed. This is not always included in our plans, especially since it can be difficult to find a competent master in this area. Therefore, we will deceive the engine’s brains without flashing it.

The first oxygen sensor is initially supplied with about 3 VDC. As the engine warms up, a pulse current of 0.1-0.9 Volts with a frequency of 1-2 Hz appears on the contacts of DK1. At this time, a pulse signal of the same frequency 0.6-0.8 Volt , but with a phase shift. This occurs due to the inertia of the catalyst. Without going into the intricacies of circuitry and radio electronics, we need to emulate the signal from oxygen sensor 2 so that the ECU does not notice its absence. There are at least two paths you can take to install the decoy without firmware.

We remove the oxygen sensor on the Lada Granta. Method one, for the lazy

To install a simple snag instead of a lambda, all you need is a soldering iron and straight arms. In addition, buy two resistances from a radio parts store:

1. 330 Ohm resistor to simulate the operation of the sensor heating filament.
2. 100 kOhm resistor .

How to diagnose and reset error codes?

In addition to the instrument panel, in Lada Kalina you can diagnose a controller that monitors the functioning of a specific electronic component of the LADA Kalina car. For example, the Bosch-ME-7.9.7 controller is capable of informing about the presence of an engine error. Reference books or a special program will help you decipher the meanings of the codes. Mechanics remember the interpretation of all codes by heart, but beginners and owners with a similar desire have only to step on the path of an amateur diagnostician.

More specifically about some code examples:

• error “0441” indicates a malfunction of the oxygen sensor;
• code “1602” will indicate a loss of voltage in the ECU power circuit;
• error “0363” will inform you about a coil failure.

The nature of the autonomous diagnostic module is such that the breakdown of a specific part is not displayed, but a specific area is localized, in which the owner needs to solve the existing problems through more accurate diagnostic measures and subsequent repairs. Many car owners will find a table of codes and their decoding useful.

For example, when error “0504” is displayed, this only hints at a malfunction in the brake system. The owner will find out exactly what has gone wrong if he performs a thorough inspection of the brake circuit. This is also true for other systems and components.

Error "0343". The decoding shows that the sensor responsible for the correctness of the signal in the phase circuit overestimates the readings. To find out the reasons why the sensor operates in this mode, you will need to perform manual diagnostics.

Self-diagnosis is designed to make it easier for the LADA Kalina owner in troubleshooting, as it allows you to focus suspicion on certain areas of action, saving time. For example, a clutch problem will be indicated by error “0830”. Its decoding is given in the table.

Note that error codes can change their meanings when the ECU software is changed. This forces the owner to have an up-to-date table to avoid confusion.

Data transmission error. Error codes

U0001 CAN bus faulty

U0002 CAN bus general fault

U0009 CAN bus, short circuit of line L to line H

U0073 CAN bus disabled

U0100 “CAN bus receiver (ICE ECU)”

U0121 CAN bus, no data from ABS controller

U0122 CAN bus, no data from ESP controller

U0155 CAN bus, no data from instrument cluster

U0167 CAN bus, no communication with immobilizer

U0305 Software incompatibility with cruise control control module

U0415 CAN bus, incorrect data from the ABS controller

U0416 CAN bus, incorrect data from ESP controller

U0426 CAN bus, incorrect data from immobilizer

IMPORTANT! In order to prevent the body electronics unit from blocking the tested circuits, do not delete “active” fault codes from the memory of the central unit of body electronics.

FakeHeader

Comments 41

Here's what to do if the spark plugs are changed 3-4t.km. back (at maintenance) When the problem arose for the first time, they changed the coil in the second cylinder, but after 3 days the problem came out again - they cleaned all the injectors, replaced the fuel filter, but after 3 days the same problem again...

does the CHECK appear on the dashboard?

Yes, it appears when starting it cold and warming up for a couple of minutes and there it is. I turned it off, started it, and it seemed to be running normally. It started even without checks, it just started and stalled right away, there were still frosts (autostart), it started up again normally. Then it started to start and stalled not immediately, but after some time (also with autostart) it was back to normal. Then I started it with the key - and saw a check; when I start it again, it disappears. The check came out about 10 minutes later, everything was fine again. And it simply stalled in a traffic jam. And well, the funniest thing is - pp.userapi.com/c639719/v6...444/44518/bajmD9S-lkk.jpgThe dashboard allows you to connect an external temperature sensor, but of course I don’t have one, and there was very surprised. There are two options - either -40 or points

1) Regarding the temperature sensor, not all trim levels have it. Buy and connect) What is the error number?

2) Regarding the stalling, this is a jamb of the factory firmware, specifically for Grants with automatic transmission. Here is an excerpt from the Za Rulem magazine article “The same Jatco JF414E automatic machine works on the Grant and the mi-DO hatchback. The editorial mi-DO made me suffer: sometimes when braking or even in leisurely walking mode, the engine suddenly stalled. To restart it, it was necessary to put the machine into “parking”, and this can only be done by stopping completely! The reason for the vagaries lay in the fact that initially the engine calibrations were calculated for the version with a manual transmission, but for a car with an automatic transmission they were not the best fit: the mechanical losses of the transmission were not taken into account, which are much higher in hydromechanics. ————-We managed to push through solution to the problem at the factory level: a diagnostic unit was installed in the editorial car, which we drove with for several months. Decryption made it possible to catch errors, and mi-DO received new firmware for the engine control unit. Now this program has gone into series: with its appearance, other unpleasant symptoms of automatic Datsuns have disappeared. The engine speed no longer drops during heavy braking, and the cramps that shook the car when the air conditioning was turned on have disappeared.”

Sometimes you get into the car, the key is turned to start, and the engine barely spins up, vibrates a lot, and troits, the check light comes on. However, as the engine warms up, it starts to run smoothly. But it jerks when moving under tension, or during rapid acceleration. With such symptoms, the first thing you need to do is, of course, read the error codes. If you have an on-board computer, then this is not a problem at all, if not, diagnostics via the connector will help

Most often we will see two typical errors:

0363 - Misfire detected, fuel supply to idle cylinders is turned off

1303 - Cylinder 3, misfire detected, critical for the converter

In addition, we can get the following:

0300 and 0303 - Checking for misfires that affect toxicity. The number of misfires is greater than the threshold value

Full set of possible errors:

P0300, 0302, 0363, 1302, 0301, 1301, 0346, 1303

So, the problem should be looked for in this order:

4. Ignition module.

In 60% of cases, everything is solved by replacing the spark plugs with new ones; in rare cases, they pull wires along with them; the worst option is burnt-out valves, but this needs to be ruled out by measuring compression. In order to exclude the mass air flow sensor or the ignition module without losing money, I recommend taking them for analysis with the condition of being able to return them, or from the corefan, if he has a mark or a four. Good luck to everyone on the roads and fewer breakdowns.

The reason that error 0363 appears on the VAZ 2114 is the so-called misfire. It is the absence of an electric spark at the spark plug of one of the cylinders, as a result of which only three cylinders are involved in the operation of the engine.

Externally, tripping looks like a large loss of power, sharp jerking of the car and strong exhaust sounds. In most cases, the car will not even be able to move. This phenomenon can occur either periodically or constantly.

The reasons may be:

• lack of spark on the cylinder spark plug;
• poor quality fuel-air mixture;
• damage (burnout) of the gasket;
• damage to the cylinder itself.

We will consider the first of these reasons (misfire) below.

On which cars is this problem most common?

The problem with code P0016 can occur on different machines, but there are always statistics on which brands this error is most often present. Here is a list of some of them:

• Acura
• Audi (Audi a3, Audi a4, Audi a6, Audi q5, Audi q7)
• BMW
• Cadillac (Cadillac SRX)
• Chery (Chery A13, Bonus, Tiggo, Handicap)
• Chevrolet (Chevrolet Aveo, Captiva, Cobalt, Cruz, Orlando, Trailblazer, Equinox)
• Chrysler (Chrysler Concorde, Pacifica, 300m)
• Citroen (Citroen C3, C4, C5, Jumper, Picasso)
• Daewoo (Daewoo Nexia)
• Dodge (Dodge Intrepid, Caravan, Neon, Stratus, Charger)
• Fiat (Fiat Albea, Doblo, Ducato, Punto)
• Ford (Ford Kuga, Mondeo, Transit, Focus)
• Geely (Gili Emgrand)
• Honda
• Hyundai (Hyundai Santa Fe, Solaris, Sonata, Tucson, Elantra, i30)
• Kia (Kia Sid, Sorento, Sportage, Cerato)
• Lexus (Lexus rx330)
• Mazda (Mazda 6, Mazda cx7)
• Mercedes (Mercedes e200, c350, ml350, w164, w212, w221)
• Mitsubishi (Mitsubishi Pajero)
• Nissan
• Opel (Opel Antara, Astra, Insignia, Corsa)
• Peugeot (Peugeot 308, 408, 508, 3008, Boxer)
• Porsche (Porsche Cayenne)
• Renault
• Skoda (Skoda Yeti, Octavia, Rapid, Superb, Fabia)
• Ssangyong (Sangyong Aktion)
• Subaru
• Toyota (Toyota Avensis, Auris, Vitz, Camry, Corolla, Land Cruiser, Prado, Prius, Highlander, Yaris)
• Volkswagen (Volkswagen Golf, Jetta, Crafter, Passat, Touareg, Tiguan, Transporter)
• Volvo (Volvo s60, xc90)
• Vortex
• Zotye T600 (Zoti T600)
• Volga Chrysler, Cyber
• Gazelle

With fault code P0016, you can sometimes encounter other errors. The most common are: P000A, P0011, P0012, P0068, P0087, P0089, P0300, P0302, P0303, P0335, P0336, P0337, P0338, P0339, P0340, P0344, P0385, P0386, P0387, P038 8, P0389, P0513, P228D , P2293.

How to troubleshoot P0134?

Step 1

Take a diagnostic scanner or adapter and read the information from the car. Record all stored trouble codes and available freeze frame data. This data can be useful if an intermittent error is later diagnosed.

Step 2

Visually inspect all wiring associated with the damaged sensor. Look for burnt, shorted, or otherwise damaged wires and connectors. Restore them if required.

Step 3

If there is no visible damage to the wires, check resistance, input (reference) voltage, ground, and continuity in all circuits associated with the damaged sensor.

Since the P0134 code indicates a problem in the signal voltage circuit, as opposed to the heater control circuit, pay special attention to the resistance and continuity values ​​in the signal circuit between the ECU connector and the sensor. These values ​​must correspond exactly to those specified in the repair manual.

Try to avoid signal circuit repairs - it is best to always replace the associated harness to avoid problems with poor connections and high resistance that can arise from poorly executed repairs.

Make sure that the sensor is receiving full voltage from the battery. Keep in mind that in some cases the heater circuit voltage comes from the ECU, in which case the circuit is not protected by a fuse. Look in the repair manual to see how voltage is supplied to the DC heater.

It goes without saying that the voltage/condition of the battery should also be checked. However, in cases of low battery voltage, codes related to low input voltages to the heater control circuit may be present along with P0134.

Step 4

If all data obtained is within the manufacturer's specifications, unscrew the oxygen sensor from the exhaust pipe and inspect it for discoloration or the presence of any type of deposits that may reduce the effectiveness of the sensor. In general, the correct color of the oxygen sensor should be the same color as a healthy, properly functioning spark plug.

Compare the sensor to the pictures at the top of this article, but keep in mind that the DC cannot be cleaned of deposits. The only reliable remedy is to replace the sensor rather than use any additives.

If the DC does not show discoloration or deposits, measure the sensor resistance and replace it if its resistance is outside the manufacturer's specifications.

Step 5

If you have checked all associated wiring, all electrical parameters specified in the manufacturer's specifications, and replaced the appropriate DC, test the vehicle to ensure the repair was successful. Sometimes a fault code returns. There may be an intermittent (intermittent) error present.

Detecting and correcting intermittent faults can sometimes be very difficult and in extreme cases may require the problem to worsen before an accurate diagnosis and permanent repair of the fault.

How to Troubleshoot or Reset Trouble Code P0363

Some suggested steps to troubleshoot and fix error code P0363:

1. Perform a spark plug check.
2. Check high voltage wires.
3. Diagnose ignition coils.
4. If everything is in order with the points above, then check the injectors.
5. The problem may come from the PCM or a software error.

Diagnosis and problem solving

The first step is always to check the technical service bulletins (TSB) for your specific vehicle. Your problem may already be known with a known fix released by the manufacturer. This can save you time and money during diagnosis.

Code P0363 is information on a stored cylinder misfire code. Any other stored pass codes will also need to be diagnosed. They are designated P0301 to P0312.

There are many tools available to test the operation of the coil, spark plug, and fuel injector. But the simple method of replacing components between cylinders is the most effective.

This is not always possible to do with fuel injectors, but it works well with coils and spark plugs. Which fail much more often than fuel injectors.

To fix the problem, you will need a scanner to read the saved codes. The scanner will also come in handy for clearing codes as the diagnostic process continues. After completing the steps to replace components, you must clear the codes to perform diagnostics.

It is best to replace spark plugs as a set if the vehicle in question is approaching the recommended replacement interval. However, locate the faulty part before performing any maintenance. When replacing the ignition coil for a specific cylinder, it is recommended to replace the spark plug. This will save you time and money in the long run.

Sometimes, when this problem is detected, some technicians assume that the injector of the relevant cylinder has failed. And they suggest replacing it, although this is simply a reaction (caused by the PCM) to a misfire. This is misleading if you are not familiar with the fuel cut-off system found on some models.

If P0363 persists without any cylinder misfire codes, suspect a faulty PCM or PCM programming error.

Additional diagnostic notes:

The P0363 code must be cleared before the faulty parts are replaced and the injector pulse on the corresponding cylinder is restored.

When using the replacement method to inspect spark plugs, be careful when removing the plugs from aluminum cylinder heads. The threads in aluminum are very fragile and can be damaged if they are not allowed to cool properly.

Possible causes of the P0300 error code

Let us once again remember the saying about “there is nothing to set on fire and nothing to set on fire with.” This is where the list of possible faults comes from.

1. These are old and dirty spark plugs that, due to carbon deposits or destruction of the electrodes, misfire. This is easy to check - by turning out the spark plugs and, to be on the safe side, replacing them with a new and known good set.
2. This is a malfunction of the ignition coil itself or the distributor on old engines with central ignition (for example, the Japanese had distributor injection engines that survived almost until the two thousandth century). More modern engines with individual ignition coils or paired coils (separate, as on ZMZ engines, or interlocked, as in VAZ ignition modules) in this case, problems will arise only with a specific cylinder or with a pair of cylinders, that is, error P0300 will not be recorded.
3. “Nothing to set on fire” may also be due to insufficient compression in the cylinders or incorrect operation of the gas distribution. The first is checked with a basic compression tester, or in a car service - with a motor tester. Measuring intake vacuum and cylinder pressure directly while the engine is running gives a much more accurate picture of the engine's condition.
4. Incorrect operation of the gas distribution mechanism is, first of all, the “loss” of marks due to a stretched timing chain, a skipped belt, or assembly errors of “keyless” engines, where there are no marks at all, and the shafts are set with special devices. A classic example is Ford keyless engines, where a deviation of several degrees can already cause tripping at idle and the recording of numerous misfires.
5. The air-fuel mixture may also refuse to ignite normally due to an incorrect composition. A mixture that is too lean is ignited with a candle “every other time,” while a mixture that is too rich will cause the candles to become fouled with soot. A characteristic sign of this is the presence in the controller’s memory of errors in the composition of the mixture (P0172, P0171), or at least a fuel correction noticeably different from zero. We only note that chaotic misfires on engines with plastic intake manifolds are most often caused by warping or cracking of the plastic and the occurrence of an error. Neither “basins” nor foreign cars are immune from this.
6. There is another way to make the engine stall, and it works best at idle, when engine vibration is more noticeable and crankshaft accelerations are calculated more accurately: a malfunction of the exhaust gas recirculation system. On engines with EGR, the supply of exhaust gases to the intake is controlled by an electric valve, the throughput of which is determined for each specific mode by firmware. An abnormal supply of exhaust gases literally “chokes” the engine, forcing it to work intermittently - hence the recording of error P0300. In this case, there will be associated errors associated with the operation of the EGR, and physical suppression of the exhaust gas supply channel will lead to a noticeable normalization of engine operation.
7. And finally, let’s not forget about the “quality” of gasoline itself: we have repeatedly encountered liquid in gas tanks that only vaguely resembles flammable liquid. It doesn’t have to be a “palenka” - often the culprit is the gas station attendants, who regularly manage to pour diesel fuel into the gasoline, and gasoline into the diesel fuel.

Which of the following is easier to do without contacting the service?

At a minimum, check the spark plugs, compression, and fuel pressure. Spraying the joints of the intake manifold parts with a spray like WD-40 will help you find the leaking area

The performance of the injectors and the shape of their spray pattern is checked by cranking the engine with the starter with the ramp pulled out (ATTENTION! Fine gasoline sprayed by the injectors is extremely fire hazardous!). Timing marks on most engines are also easy to check.

Is it possible to drive with P0300?

Definitely not worth it. Do not forget that misfire diagnostics were introduced to save the catalyst. The already dubious pleasure of driving with a shaking engine can be supplemented by caking or destruction of the catalyst.

In addition, this may indicate a malfunction of the engine: “creeped” timing marks may subsequently result in the pistons meeting the valves, and this is a serious and expensive repair.

Diagnostics

To decipher the error codes that appear, it is necessary to diagnose the vehicle. The machine can be checked in several ways. We will talk about them further.

Car Lada Granta sedan

Diagnostics with a scanner

To check using a scanner, you need to connect the on-board computer “State X1” to the tester or laptop using a diagnostic cable. The scanner or laptop must be equipped with software designed specifically for diagnostics. In our article we will look at an example with the KWP_D program.

In addition to this utility, you will also need to find a specialized OBD-II adapter. It is necessary in order to transfer information from the bookmaker to the laptop via USB output. The diagnostic connector is located next to the gearbox selector, under the cover. You need to connect a scanner to it.

The Check lamp indicates possible breakdowns of the battery

When the program is installed, when you connect, you will see that a COM output with a specific number has appeared in the system. This number will need to be reassigned to any of the four - 1-4. When this is done, the laptop needs to be connected to the bk, then start the ignition and turn on the software.

As you know, any car engine has its own characteristics that determine its operation. If these characteristics differ from the standard ones, this means that there is something wrong with the engine.

The first point to pay attention to is the DTC characteristic. If malfunctions are detected in the BC system, then open the “Error codes” tab and find the number along with the decoding

Please note: everything will be fine with your Lada Granta if the measured characteristics do not differ from the standard ones by more than 20%.

1. Remove the plastic protective cover next to the gear selector and you will see the connector.

2. Connect the scanner for testing and run the utility.

3. Go to the “Parameters” tab and check the standard characteristics.

Diagnostics without a scanner

Checking a car without a scanner is not a difficult task at all. The disadvantage of such diagnostics is that it does not always allow you to identify all errors in the operation of the car:

1. On the instrument panel, press the button that resets the daily mileage. At the same time, turn the key and turn on the ignition, but do not start the engine. In this case, the instrument panel test mode starts, which will help determine whether all panel elements are functioning properly.
2. Then press the button on the windshield wiper lever. Thus, the firmware version of the bookmaker “State X1” will first appear on the screen, and then you will see combinations of possible faults, if any.

Diagnostic methods for Lada Vesta

There are two types of reading errors from the memory of the car’s on-board computer.

1. Self-diagnosis - the on-board computer can show the motorist any existing errors. A simple procedure allows you to perform repairs without additional equipment. The disadvantage is the impossibility of determining the exact location of the breakdown or its system - the BC will only indicate the direction in which the defect should be looked for.
2. Using a diagnostic scanner is a complex procedure that cannot be done at home. For normal diagnostics, you will need to connect a laptop or tablet with a special program to the machine. Usually this is done exclusively in specialized workshops.

P1302 error Lada Granta

In general, these are the things, in the morning we warmed up the car and suddenly: - the engine revved up - the check came out - uneven exhaust - the speed fluctuates a little - the car stalls

I'm terrified what to do O_O

Sorry for the swear words =). I made a diagnosis using OBD II.

Error P1302 and P0363

We left the car as is, went to work. I rummaged around on the Internet and found information that everyone writes 100% that the ignition coil is dead! And then I thought, hmm. The mileage is 39 thousand, have the spark plugs in the car been changed at all? Because I am the second owner and somehow forgot about them that they are consumables =)

I didn’t buy new spark plugs because the previous owner left them for me as a gift =) I tried to change the spark plugs, but I couldn’t unscrew the bolt that holds the coil, not a single head fit from the standard set, you need TORX E8 (1/4). ATTENTION, even with standard heads don’t try to rip it off... then fuck it... look for that bolt =)

The next day came, but I was already fully prepared! =)Bought:

I didn’t bother to do a video on how to unscrew the spark plugs, I found it on the Internet

https://youtube.com/watch?v=5NY-dOPc614

I started it up and everything started working fine, I thought, oh well, let the new ignition coil be in stock. My wife and I went to work the next day, I thought, well, it was cool, it was all about the spark plugs, I rolled 39 thousand on the factory ones, and then after 2 km you again have the same situation and the same errors, took out a new ignition coil and replaced it in the second cylinder. Started it up and ufff, well, finally everything is good =)

After the replacement, I checked the dead coil, using this instruction from ld-s www.drive2.ru/l/4899916394579308899/ I found out that the second winding of the ignition coil had died.

And yet, comrades, in order not to end up replacing the coil, change the spark plugs on time! =)

P/S: By the way, everyone writes that it’s better to buy BOSH coils and not Russian fantastic ones =) But to be honest, it’s a shame for me to buy 1 BOSH coil for 1750 rubles O_o

from record dia2 The manufacturer's marking can be determined by the last digits: 10 - BOSCH11 - Itelma 12 - Stary Oskol (I had the factory one) 13 - Novosibirsk (bought in a store)

After a month of operation: there were occasional drops in speed and a slight vibration in the body. All the coils rang, the second winding was broken, and the new coil was broken (i.e., defective). Conclusion: Don’t fuck with the BOSH coil! Now I understand SOLIKAMCK’s comment “it’s better to install the Bosch and forget ours will drink more blood for you”

Price tag: 1,250 ₽ Mileage: 39000 km

Online consultation

Heated oxygen sensors (HO2S) are used to regulate fuel delivery and monitor catalytic converter performance. Each HO2S sensor compares the oxygen content of the ambient air with the oxygen content of the exhaust gases. When the engine starts, the control unit operates in open-loop control mode, ignoring the HO2S signal level when calculating the air-fuel ratio. The control unit supplies the HO2S sensor with a control or bias voltage of approximately 450 mV. While the engine is running, the HO2S sensor heats up and begins to generate a voltage ranging from 0 to 1000 mV. This voltage fluctuates above and below the bias voltage. When the control unit detects a sufficient deviation in the HO2S sensor voltage, closed-loop mode is activated. The control unit uses the HO2S sensor voltage to determine the air/fuel ratio. An HO2S voltage that rises above the 1000 mV bias voltage indicates a rich fuel mixture. HO2S voltage falling below the 0 mV bias voltage indicates a lean fuel mixture. Inside each HO2S sensor, heating elements heat the sensor, causing it to become operational more quickly. Thanks to this, the system switches to closed-loop mode earlier, and the control unit calculates the air-to-fuel ratio earlier. Conditions for Setting the DTC The ignition switch is in the ON position. The car operates in closed loop mode. There is no fault in the HO2S heater. The engine speed is below 6016 min-1. Mass air flow (MAF) is greater than the MAF value from the diagnostic table. Conditions for setting the DTC. The HO2S sensor signal voltage is below 24 mV for 10 seconds. Or The HO2S sensor signal voltage ranges from 352 mV to 499 mV in 10 seconds. Action Taken When the DTC Sets The MIL comes on. The controller records the operating conditions at the time the fault is detected. This information is stored in a status record buffer and fault logs. An archive of diagnostic trouble codes is saved. Conditions for Clearing the DTC/Malfunction Indicator The DIL turns off at the end of a subsequent test cycle in which the diagnosis is performed without failure. The historical DTC clears after 40 heat cycles without failure. The DTC can be cleared by a scan tool. Diagnostic Aids The normal scan tool signal varies between 0.1 V and 0.9 V in closed loop. Check the oxygen sensor wire. The oxygen sensor may not be installed correctly and contacting the exhaust manifold. Check for an intermittent short to ground in the wire between the oxygen sensor and the ECM. Check the injector balance to determine if the lean mixture is caused by a clogged injector. Vacuum in the crankcase due to its leakage causes the mixture to become lean. A leaking exhaust manifold gasket can cause outside air to be sucked into the exhaust and past the sensor.

What is error P0036 on Lada Granta. Oxygen sensors

The Euro3 emission cleanliness standard requires the installation of two oxygen sensors on the catalyst. The first controls the composition of the exhaust at the inlet, the second analyzes the composition of the exhaust gases at the outlet of the converter. Any malfunction of one of the lambda probes leads to incorrect operation of the engine control system (ECM).

Error P0036 on the Lada Granta indicates a malfunction of the heating element in the second oxygen sensor, or an open circuit for polling and controlling the sensor.

Malfunctions that cause error code P0036 to appear necessarily indicate problems with the sensor and manifest themselves in different ways. The error may appear on a cold engine, but disappear on a warm engine. If you ignore it and simply erase it using the on-board computer, it will appear again. On runs up to 40-50 thousand km, the reaction to an error may already be a Check Engine signal, which is almost impossible to reset. Therefore, you have to look for the cause of error code P0036 and methods for troubleshooting.