Chevrolet Niva error codes with decoding

F1514_Crypto. dll: How to fix "File not found" errors

Instructions: Hold down the odometer button, turn the ignition key to the first position, release the button.
The arrows start moving, press again, release, and see the firmware version (in the video, ver 1.6). And for the third time they pressed, released, saw the error code (if there is one) on the video code: 8. Reset the error code, press and hold the button until the number 0 appears. Microprocessor error 2

Fuel gauge circuit error
4
High voltage
8
Low voltage
12
Indicator lamp diagnostic circuit faulty
13
No oxygen sensor/LAMDA signal
14
Coolant temperature sensor high
15
Coolant temperature sensor low
16
Vehicle voltage too high
17
Voltage low on-board network
19
Incorrect crankshaft position sensor signal
21
High signal level of the throttle position sensor
22
Low level of the throttle position sensor signal
23
High level of the intake air temperature sensor signal
24
No signal from the vehicle speed sensor
25
Low level of the intake air temperature sensor signal
27
High level CO potentiometer signal
28
Low signal level of the CO potentiometer
33
High signal level of the mass air flow sensor For GM NIVA: High signal level of the absolute pressure sensor
34
Low level of signal of the mass air flow sensor For GM NIVA: Low signal level of the absolute pressure sensor
35
RPM deviation idle speed
41
Incorrect phase sensor signal
42
Malfunction of the electronic ignition control circuit
43
Incorrect knock sensor signal
44
Lean mixture
45
Rich mixture
49
Diagnosis of vacuum loss
51
EPROM error
52
RAM error
53
No CO potentiometer sensor signal For GM NIVA: high voltage
54
No signal from the octane corrector sensor
55
Leaning at high engine load For GM NIVA: error in the electronic control unit
61
Degradation of the oxygen sensor/LAMDA probe

Errors persist until they are reset manually! Also mistakes add up! That is, you have errors 8 and 14, then error 22 will appear on the display.

If you have any information on this topic, please add it in the comments!

The on-board computer installed in the VAZ-2114 makes life much easier for the car owner in such a difficult task as diagnosing faults. Agree, there can be quite a lot of breakdowns with the same symptoms, and sometimes you have to check several versions until you get to the bottom of the real cause.

Chevrolet Niva error codes

Error codes Niva Chevrolet (VAZ 2123)

List of fault codes recorded by the BOSCH M7.9.7 controller (euro-2, euro-3)

P0102—Low signal level of the mass air flow sensor (MAF). P0103—High signal level of the mass air flow sensor (MAF). P0112—low signal level of the intake manifold temperature sensor (ITM). P0113—Intake manifold temperature sensor (ITM) signal level is high. P0116—The signal from the coolant temperature sensor (TTOZH) is out of the permissible range. P0117—Low signal level of the coolant temperature sensor (DTOZH). P0118—High signal level of the coolant temperature sensor (DTOZH). P0122—Low signal level of the throttle position sensor (TPS). P0123—High signal level of the throttle position sensor (TPS). P0130—Incorrect signal from oxygen sensor No. 1 to the converter. P0131—Low level signal from oxygen sensor No. 1 to the converter. P0132—High level signal from oxygen sensor No. 1 to the converter. P0133—Slow response to rich or lean oxygen sensor No. 1 to converter. P0134—No signal (open circuit) of oxygen sensor No. 1 to the converter. P0135—Oxygen sensor No. 1 heater circuit to converter malfunction. P0136—Short to ground in the oxygen sensor circuit No. 2. P0137—Low level signal from the oxygen sensor No. 2 after the converter. P0138—High signal level of oxygen sensor No. 2 after the converter. P0140—No signal (open circuit) of oxygen sensor No. 2 after the converter. P0141—Oxygen sensor No. 2 heater circuit malfunction after converter. P0171—Fuel system (air/fuel mixture) too lean. P0172—Fuel system (air/fuel mixture) too rich. P0201—Open circuit for controlling the injector of the 1st cylinder. P0202—Open circuit for injector control of the 2nd cylinder. P0203—Open circuit of the 3rd cylinder injector control. P0204—Open circuit for the 4th cylinder injector control. P0261—Short to ground in the 1st cylinder injector control circuit. P0262—Short circuit to the on-board power source of the 1st cylinder injector control circuit. P0264—Short to ground in the 2nd cylinder injector control circuit. P0265—Short circuit to the on-board power source of the 2nd cylinder injector control circuit. P0267—Short to ground in the 3rd cylinder injector control circuit. P0268—Short circuit to the on-board power source of the 3rd cylinder injector control circuit. P0270—Short to ground in the 4th cylinder injector control circuit. P0271—Short circuit to the on-board power source of the 4th cylinder injector control circuit. P0300—Random/multiple misfire detected. P0301—Misfire detected in Cylinder No. 1. P0302—Misfire detected in Cylinder No. 2. P0303—Misfire detected in Cylinder No. 3. P0304—Misfire detected in Cylinder No. 4. P0327—Knock Sensor (DS) Signal Low . P0328—High signal level of the knock sensor (DD). P0335—Crankshaft position sensor (CPS) signal missing. P0336—The crankshaft position sensor (CPS) signal is out of acceptable limits. P0337—Crankshaft position sensor (CPS) circuit short to ground. P0338—Open circuit of the crankshaft position sensor (CPS). P0340—Camshaft Position Sensor (CPS) circuit malfunction. P0342—Low signal level of the camshaft position sensor (DPRV). P0343—High signal level of the camshaft position sensor (CPS). P0422—Converter efficiency is below the permissible threshold. P0441—Incorrect air flow through the valve. P0443—Canister purge valve control circuit is faulty. P0480—Cooling Fan No. 1 Relay Control Circuit Malfunction. P0481—Cooling Fan No. 2 Relay Control Circuit Malfunction. P0500—Invalid vehicle speed sensor signal. P0503—Intermittent vehicle speed sensor signal. P0506—Low idle speed (idle speed control blocked). P0507—High idle speed (idle speed control blocked). P0560—On-board network voltage is below the system operability threshold. P0562—On-board network voltage is too low. P0563—On-board network voltage too high. P0601—Controller ROM checksum error. P0603—Error writing/reading external RAM of the controller. P0604—Error writing/reading controller internal RAM. P0615—Starter relay control circuit open. P0616—Short circuit to ground in the starter relay control circuit. P0617—Short circuit to the on-board power source of the starter relay control circuit. P1135—Oxygen sensor No. 1 heater circuit to converter malfunction. P1140—Incorrect signal from the mass air flow sensor (MAF), the measured load parameter differs from the calculated one. P1141—Oxygen sensor No. 2 heater circuit malfunction after converter. P1386—Test pulse or controller knock channel integrator is out of tolerance. P1410—Short circuit to the on-board power source of the canister purge valve control circuit. P1425—Short to ground in the canister purge valve control circuit. P1426—Open circuit for controlling the canister purge valve. P1501—Short circuit to ground in the electric fuel pump relay control circuit. P1502—Short circuit to the on-board power source of the electric fuel pump relay control circuit. P1509—Idle air regulator (IAC) control circuit overload. P1513—Short circuit to ground in the idle air regulator (IAC) control circuit. P1514—Short circuit to the on-board power source (or open circuit) of the idle air regulator (IAC) control circuit. P1541—Open circuit of the electric fuel pump relay control circuit. P1570—No response from the vehicle anti-theft system (ATS) or open circuit. P1602—Loss of on-board power supply voltage in the controller. P1606—Incorrect rough road sensor signal. P1616—Rough road sensor signal low. P1617—Rough road sensor signal level high. P1640—Error writing/reading internal flash RAM (EEPROM) of the controller. P1689—Incorrect code values ​​in the controller fault memory.

What does error 14 mean on the odometer display of the VAZ-2114 during self-diagnosis

Often, many car enthusiasts strive to solve all problems with their car on their own, going for service only in particularly serious cases. This approach in relation to the VAZ “fourteenth” model is completely justified. The design of the car is quite simple, because it is a restyling of the well-known “nine”, to which the designers made some changes. Well, the undoubted advantage of self-diagnosis and repair is the absence of the need to pay, in addition to spare parts, for the work of car service technicians.

The car has become more modern, it now has the ability to conduct self-diagnosis. Let's look at this procedure in a little more detail. First of all, you should find the odometer button on the instrument panel, which is responsible for mileage (total and daily) - you need to press it and hold it in this position. Next, turn the key in the ignition switch - you need it to be in position 1. After this, release the odometer button. You will see arrows start running on the panel. Then we press the odometer button again, but no longer hold it, but immediately release it. You will see information about the firmware.

After this, you should repeat the steps described above again, in exactly the same sequence. If there is any malfunction in your car, its code should appear on the odometer display.

There is a special table to decipher them. For example, the appearance of code 14 means the signal level coming from the coolant temperature sensor is too high. Accordingly, to eliminate the problem, you should check its performance and, if necessary, replace it with a new one.

You can do this yourself, there is nothing complicated here. At the same time, there is no need to delay solving the problem. The thing is that a problem with the coolant temperature sensor leads to such unpleasant moments in the car’s operation as:

What to do

What needs to be done if the Chevrolet controller displays error PO422. First of all, you should contact a car service center with qualified specialists who have the necessary equipment for diagnostics and repairs.

If this is not possible at the moment, try the following.

1. Replacing gasoline with high-quality or regular gasoline. Let's say the problem arose when changing the gas station. The Chevrolet driver notes the appearance of the error after this. Some auto mechanics, who often encounter a similar problem, advise the client to “run” two or three tanks with good or usual car fuel. Sometimes the problem goes away.
2. Changing the engine oil.
3. Replacing the catalytic converter. The procedure is expensive and not always justified. To make sure that the problem is in the catalyst, you can try the following: remove it from another Chevrolet that does not have distortion. Install on yours. If the trip shows an error, then the problem is not in the filter. And if not, then the catalyst definitely needs to be replaced.
4. “Kulibins” clean the neutralizer with acid, claiming that this way it is possible to extend its life.

Sometimes the problem lies in the programming of the controller itself. After flashing everything is restored.

What and how to check

When diagnosing error P1514, be sure to check the following data:

The algorithm for specific actions will depend on the make and model of the car, since everyone’s electrical circuits are different. However, the general algorithm will be the same for everyone. Let's look at it using the example of a common domestic car - the VAZ-2107 with an injection engine. So, the verification algorithm will be as follows:

In this case, due attention must be paid to visual inspection of the chain in order to locate the location of its damage. And then the problem “idle air regulator circuit short circuit to +12V, open” will be determined, all that remains is to eliminate the malfunction.

Car self-diagnosis

How to reset errors yourself

After self-diagnosis of errors and elimination of their causes on a carburetor or injection engine, a malfunction message may remain on the standard panel. If the problem has been deleted, this means that the code combination remains in memory. We'll look at the description of the faults below, and now we'll tell you how to remove the code from memory. To remove it after testing the device, when VAZ 2114 errors appear, the codes themselves must be written down. After this, the daily mileage reset button is pressed again, this will clear the fault from the control unit’s memory.

Resetting the "Check Engine" error

It often happens that the instrument panel 2114 8 or 16 valves displays a check error - engine malfunction, the orange icon is on. Self-diagnosis does not always allow you to accurately check and determine how to fix such a problem. To fix the problem and find a solution, you should perform more detailed diagnostics of the car using a computer and additional equipment. Perhaps, during diagnostics, an unknown error indicates a malfunction in the microprocessor, on-board network or sensors. After the problem is fixed, the receipt may remain.

The "Check Engine" indicator indicates a problem with the engine.

How to reset the fault code:

Error codes on Niva Chevrolet

PSP power steering system pressure sensor/switch Based on the information received from the PSP sensor/switch, the PCM provides an increase in idle speed by triggering the IAC sensor in order to compensate for the increasing engine loads associated with the operation of the power steering during maneuvers.

These scanners are available at almost every service station that does diagnostics. Universal devices are not full-fledged testing equipment.

In fact, they sometimes produce erroneous data and do not always detect all faults. You will not be able to buy a specialized device in stores; it can be found from official representatives.

With the help of these gadgets, you can not only determine error codes, but also interrogate control units, program keys, and even look for damage in electrical circuits. Cost The price of the cheapest scanners today is about rubles; specialized devices will cost the buyer rubles or more. Decoding the codes Now we suggest you familiarize yourself with the decoding of the combinations. Why errors may occur and how to eliminate them can only be found out as a result of diagnostics.

The elm channel published a video showing the diagnostic procedure for a Chevrolet Niva using a special adapter and an Android-based mobile phone. Frequent errors First, let's look at the decoding of frequently occurring problems that occur in the Chevrolet Aveo in the T, T, Niva and other models. If this code appears in an Orlando, Niva, Lacetti or other Chevrolet model, the car owner needs to test the performance of the unit itself, as well as the rough road controller.

Often the reason is a failed sensor, damage, oxidation or contamination of its contacts. You can try to solve the problem by dismantling and cleaning the p connector. The car owner is informed of problems with the solenoid or damage to the electrical circuit.

It is necessary to perform a detailed check p The on-board computer received a message about irregularities in the functioning of the exhaust gas recirculation system.

Often the reason is related to a breakdown of the controller, so it is necessary to diagnose and replace the sensor p The error code indicates a malfunction in the functioning of the locking device.

Comments and reviews

It is necessary to test the operation of the immobilizer. If you do not pay attention to diagnosing and checking this error, then over time the immobilizer may block the engine and, as a result, it will be impossible to start it.

You can try to disable and activate the immobilizer or reprogram its chip p The Check Engine lamp does not work. You need to check the functionality of the indicator light in the dashboard. Often, resetting the error p allows you to solve the problem if the light bulb is working. The error literally means a loss of voltage in the on-board network.

Chevrolet Niva 2011, 79 l. With. - other

The reasons may be different. P—The effectiveness of the neutralizer is below the permissible threshold. P—Incorrect air flow through the valve. P—Canister purge valve control circuit is faulty.

P—Incorrect vehicle speed sensor signal. P—Intermittent vehicle speed sensor signal. P—Low Idle Speed ​​The idle speed control is locked. P—High Idle The idle speed control is locked. P—On-board network voltage is below the system operability threshold. P—Reduced on-board network voltage.

P—Controller ROM checksum error. P—Open starter relay control circuit. P—Short to ground in the starter relay control circuit. P—Short circuit to the on-board power source of the starter relay control circuit. P—Incorrect signal from the mass air flow sensor DMRV, the measured load parameter differs from the calculated one.

P—The test pulse or controller knock channel integrator is out of tolerance. P—Short circuit to the on-board supply source of the canister purge valve control circuit.

How to fix the problem?

To eliminate the malfunction, it is necessary to check the lambda probe. It is necessary to check and eliminate malfunctions associated with air leaks and exhaust gas leaks. They examine the composition of the mixture and make sure that it is not depleted or over-enriched. Check for the absence of antifreeze in the engine oil. If the diagnostics showed additional error codes, then you need to eliminate the problems associated with them. Faulty wires can be replaced or repaired. If the oxygen sensor is faulty or shows obvious signs of contamination, it must be replaced. After a run of 100 thousand kilometers, the lambda probe can be changed without checking. In this case, its resource will certainly be exhausted. After completing the replacement, you need to test the engine and make sure the repair was successful. In rare cases, the electronic control unit may be faulty.

Meaning and interpretation of error codes

To read the faults, first consider the list with a table of UEr errors that self-diagnosis produces (the author of the video is Ivan Vasilyevich).

These codes can add up; if you see the number 6, this may indicate errors 2 and 4, or if the number 9 is displayed, errors 1 and 8.

In order to immediately read and decipher problems when diagnosing, it is advisable to download and always carry with you a printout with a description. When diagnosing using a computer, codes on engine 21124 may differ depending on the car model. To read the codes, you need to know how they are supposed to be deciphered. Errors must be reset after they have been deleted (the video was filmed and published by the KV Avtoservis channel).

Chevrolet Niva error codes

Errors transmitted through the diagnostic connector are displayed on an external device as a four-digit code. There are special tables that allow you to decipher these codes.

Related error codes P1301, P1302, P1303, P1304

Along with error P0363, you can also observe the following error codes P1301, P1302, P1303, P1304 - these codes indicate in which cylinder(s) 1, 2, 3 or 4, respectively, misfire occurred. The automatic system analyzes the speed and uniformity of rotation of the crankshaft and, if anomalies are detected, records the necessary error in the log.

Also, in some situations, the fuel supply to those cylinders in which the problem has arisen is turned off in order to protect the engine and its components from negative effects.

Diagnosis of error P0363 (P1301, P1302, P1303, P1304) and related faults at an authorized dealer:

A diagnostic device is connected to the client's car, the ignition is turned on and the car engine starts. Then you need to go to the “Signal Monitoring” section and try to reproduce the conditions under which the error code appears. If error codes are recorded, proceed to check the compression and valve timing. In most cases, after checking and troubleshooting, the error goes away and the car's operation returns to normal. However, if after the work the errors continue to be recorded, they begin checking the fuel supply system.

If checking the fuel supply system does not reveal any abnormalities, there remains one component that may harbor a misfire problem - the intake system, which must be checked for air leaks.

Causes of error B1514

On our resource you can ask questions and share your own experience in troubleshooting problems associated with error B1514. By asking a question within a few days you will be able to find the answer.

Taking into account the fact that OBD2 errors in the operation of the engine or other electronic systems of the car do not always directly indicate a non-functioning element, and the fact that for different brands and models of cars the same error can arise as a result of a malfunction of completely different elements of the electronic system, we have created this algorithm for assistance and exchange of useful information.

We hope, with your help, to form a cause-and-effect relationship for the occurrence of a particular OBD2 error in a specific car (make and model). As experience has shown, if we consider a specific make and model of a car, then in the vast majority of cases the cause of the error is the same.

If the error indicates incorrect parameters (high or low values) of any of the sensors or analyzers, then most likely this element is working, and the problem must be looked for, so to speak, “upstream”, in the elements whose operation is analyzed by the sensor or probe.

If the error indicates a constantly open or closed valve, then you need to approach the issue wisely, and not thoughtlessly change this element. There may be several reasons: the valve is clogged, the valve is jammed, the valve receives an incorrect signal from other faulty components.

Errors in the operation of the OBD2 engine and other vehicle systems (ELM327) do not always directly indicate a non-functioning element. The error itself is indirect evidence of a malfunction in the system, in a sense a hint, and only in rare cases a direct indication of a faulty element, sensor or part. Errors (error codes) received from a device or scanner require correct interpretation of the information, so as not to waste time and money on replacing working elements of the car. The problem often lies much deeper than it seems at first glance. This is due to the fact that information messages contain, as mentioned above, indirect information about the disruption of the system.

Here are a couple of general examples. If the error indicates incorrect parameters (high or low values) of any of the sensors or analyzers, then most likely this element is working, since it analyzes (produces certain parameters or values), and the problem must be looked for “upstream”, so to speak, in elements whose operation is analyzed by a sensor or probe.

If the error indicates a constantly open or closed valve, then you need to approach the issue wisely, and not thoughtlessly change this element. There may be several reasons: the valve is clogged, the valve is jammed, the valve receives an incorrect signal from other faulty components.

Another point that I would like to note is the specifics of a particular brand and model. Therefore, if you recognize an error in the operation of the engine or other system of your car, do not rush to make hasty decisions, but approach the issue comprehensively.

Our forum was created for all users, from simple car enthusiasts to professional auto electricians. A drop from each will be useful to everyone.

Description and meaning of error P0598

This is a generic powertrain diagnostic trouble code (DTC), which means it covers all makes/models 1996-newer. However, specific diagnostic steps will vary depending on the vehicle. Codes P0597, P0598 and P0599 all refer to the engine's electronically controlled thermostat. They are general codes, meaning they apply to all vehicles using this type of thermostatic control, however only a small number of manufacturers use this type of system. So this trouble code article is basically identical for all three codes. Diagnostic trouble code P0598 indicates that a fault has occurred with this system where the control voltage is low. For the most part, German manufactured vehicles like BMW, Mercedes, Audi, Mini, Volkswagen, Opel and Jaguar use this system. An electronically controlled thermostat consists of various temperature and load sensors, a computer program and a control housing with a built-in thermostat. ConceptBy monitoring coolant flow or engine temperature electronically, the throttle part increases fuel economy and reduces emissions, while reducing temperature under load increases power.

Technical description and explanation of error P2177

This diagnostic trouble code (DTC) is a generic powertrain code. Trouble code P2177 is considered a common code because it applies to all makes and models of vehicles. Although the specific repair steps may vary slightly depending on the model.

This code mainly concerns the value provided by the air/fuel ratio sensor, more commonly called the oxygen sensor (located in the exhaust). Which helps the vehicle's PCM (Powertrain Control Module) to control the amount of fuel injected into the engine.

Specifically, the PCM detects a lean mixture, which means there is too much air in the air/fuel ratio. This code is set for bank 1, which is the cylinder bank that includes cylinder number 1. This could be a mechanical or electrical fault, depending on the vehicle manufacturer and fuel system.

Troubleshooting steps may vary depending on the manufacturer, fuel system type, mass air flow (MAF) sensor type, and wire colors. And also a type of air/fuel/oxygen ratio sensor (AFR/O₂).

Video “Visual instructions for self-diagnosis”

For a simpler check, you can resort to the self-diagnosis method - detailed instructions for checking are presented in the video below (the video was filmed and published by the channel Your Own Mechanic).

We recommend watching:

Error 0030 VAZ 2114 how to fix

On-board computer VAZ 2114 how to view errors

How to fix error P0422 on a Chevrolet Niva

If the on-board computer displays information that error P0422 Niva Chevrolet has occurred, this can mean one thing - the catalyst (neutralizer) of the exhaust system is not working correctly, or rather, ineffectively. And he stopped coping with his main responsibilities - filtering toxic substances from exhaust gases. Installing a catalyst on a Chevrolet Niva has one goal - raising the class of the car in terms of its environmental friendliness. But the controller’s reaction to error P0422 worsens engine performance, so it must be eliminated.

Decoding Chevrolet Niva (LADA) error codes

There are several simple external signs by which one can indirectly judge that there are problems with the idle regulator or its control circuit. Among them:

However, the signs listed above may actually indicate other malfunctions in the car, so it is necessary to carry out an accurate diagnosis by reading data from the electronic engine control unit (ECU) using special hardware and software.

Error p1514 Niva Chevrolet

The VAZ 2113 car has a Multitronics on-board computer. Lately, error message 1514 often appears. If you look at the description of the error in the on-board computer, it says the following: “IAC control circuit, open or shorted to +12 V.”

Searching for a description on the Internet is also terse:

“Short circuit to the on-board power source (or open circuit) of the idle air regulator (IAC) control circuit.”

As I understand it, the idle speed regulator is covered with the female genital organ. Although the behavior of the car is generally calm, the speed is even. It only spits gasoline from the exhaust pipe: As they said in the store, these sensors are different and NOT interchangeable.

Question: How can I find out the marking of my idle air control valve, where is it located in the car, and where and when can it be changed?

Thank you. Found it in the photo thanks to your advice

I just googled and found out that vazovodov have a lot of complaints about this error. Opinions agree that this is a software bug in the factory firmware EL36. What kind of firmware do I have, I have no idea

The MP7.0N distributor injection control controller installed on VAZ vehicles has an idle speed regulator control driver with a self-diagnosis function. Thanks to this, it can detect the presence of faults such as an open circuit, short circuit to ground or overload of the control circuit.

If the voltage in the on-board network is in the range of 7 - 16V when the engine is running, and self-diagnosis of the idle speed regulator control driver has determined that there is no load in the regulator control circuit, then the “Check Engine” lamp lights up on the instrument panel and the VAZ fault code P1514 is entered into the controller’s RAM memory . When this code appears in memory, the controller stops controlling the regulator. Control is resumed only after the fault has been eliminated and the ignition has been turned on/off.

VAZ-2113 error 1514

The VAZ 2113 car has a Multitronics on-board computer. Lately, error message 1514 often appears. If you look at the description of the error in the on-board computer, it says the following: “IAC control circuit, open or shorted to +12 V.”

Searching for a description on the Internet is also terse:

“Short circuit to the on-board power source (or open circuit) of the idle air regulator (IAC) control circuit.”

As I understand it, the idle speed regulator is covered with the female genital organ. Although the behavior of the car is generally calm, the speed is even. It only spits gasoline from the exhaust pipe: As they said in the store, these sensors are different and NOT interchangeable.

Will be useful: Body repair. Top 10 body repair mistakes. Tips on how to properly perform car body repairs

Question: How can I find out the marking of my idle air control valve, where is it located in the car, and where and when can it be changed?

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Thank you. Found it in the photo thanks to your advice

I just googled and found out that vazovodov have a lot of complaints about this error. Opinions agree that this is a software bug in the factory firmware EL36. What kind of firmware do I have, I have no idea

Posts 1 page 12 of 12

Share104-10-2013 01:53:19

Hello, please tell me what error 1514 is, if anyone knows and how to fix it

Share204-10-2013 10:01:29

P1514 Throttle valve control system malfunction. I had one of these come out when the chain broke. Valve train chain. I got it.

First, try resetting, if it happens again, dig.

Share304-10-2013 13:40:16

I reset the engine, it runs fine for a while, then it starts to sputter again and gives the same error, they checked the cylinders, the pressure in the cylinders is excellent.

Share404-10-2013 18:19:56

Share504-10-2013 18:35:36

You understand, the car is in a car service center, so to call it, if it were a normal service in the vicinity, then no questions would arise, but I am conveying the words that the mechanic told me

Share604-10-2013 22:23:59

Mechanic or electrician? Isn't the throttle valve itself stuck?

Share715-10-2013 15:32:19

My personal conclusion is that the problem in the exhaust system and the damper itself has nothing to do with it. I could be wrong , an autopsy will show. I will knock out the afterburner, then the catalyst one by one.

PS The filters have been changed, the pressure in the rail is normal, the spark plugs are new, the EGR is plugged, the soldered EGR blende works perfectly.

Share815-10-2013 17:45:58

What kind of EGR trick is this?

Share916-10-2013 00:39:40

Share1024-10-2013 13:49:47

I got to the garage. The autopsy showed that I was wrong.

Now on topic: Maybe just clean the damper? cases for half an hour along with removal (definitely won’t be superfluous);

cylinder pressure is excellent

If it's not a secret, what is it? I have 13 points in the first three, and 12.5 in the fourth.

Share1124-10-2013 14:14:53

I would like to note that after diagnostics they sent Atlantic Motors without a second thought to get a new damper (the guys don’t want to work at all).

I have long said that Atlantic is no longer the right service to turn to.

It will be useful: Car DVR: regular, hybrid, analog and digital

Share1204-11-2013 00:27:26

The broken bolt is defeated, the chain is set to the marks. The car became playful again, error 1514 does not light up.

Hello, please tell me what error 1514 is, if anyone knows and how to fix it

Has the problem been resolved? If so, why did you issue 1514 and how was it treated?

How to resolve error P1514

The method for eliminating error P1514 depends on the reason that led to its appearance. In general, the following options are possible:

An interesting fact is noted for modern VAZs with firmware “January-7.2” (this could be “Kalina”, “Granta” or another Lada). On numerous forums, their owners note that error P1514 “falls out” for them just like that, due to a “glitch” of the control unit, and in fact, the IAC and its wiring have nothing to do with it. This problem can be resolved by flashing the ECU. Car owners recommend HL52, FL52 or DZ36. However, remember that, firstly, you need to reflash the control unit in a good, trusted car service center, and secondly, even if such firmware is available, it still makes sense to check the regulator and its wiring. However, in this case, you need to start repairs not by flashing the firmware, but simply by resetting the error. This can be done programmatically or simply by disconnecting the negative terminal on the battery for a few seconds.

Sometimes, as a preventive measure, it is recommended to check the MAF ADC. It also makes sense to clean the internal contacts of the main and fuel relays. As a last resort, replace them (if they are significantly worn and/or burnt). For VAZ cars, it is preferable to use a throttle position sensor (TPS), manufactured in Kaluga. If possible, replace with one.

Some car owners experience error P1514 because they fill the gas tank with fuel with a lower octane number than prescribed by the car manufacturer. This is explained by the fact that either in the regulator itself or in its wiring there is some kind of minor damage, which under normal conditions does not show itself. However, when pouring low-octane gasoline, the engine begins to vibrate more, which is why hidden “diseases” may appear. This usually results in broken insulation or electrical contacts somewhere in the circuit.

Please note that when P1514 occurs, the engine control module no longer controls the idle speed control. However, after it is eliminated, IAC control resumes immediately after turning off/on the ignition system.

Reasons for the error

There are several reasons that could be the source of error P1514. Among them:

Idle speed control

• Complete or partial failure of the idle air regulator. This is usually expressed in a violation of the insulation of its windings (a change in the value of electrical resistance). It is also possible that it may be physically contaminated, or its seat or electrical contacts may be contaminated. If the regulator is old, then physical wear of its individual elements or an increase in play is possible.
• Damage to the IAC control circuit. This could be a break in the individual wire(s) or damage to the insulation.
• Poor electrical contact in the IAC control circuit. There may be oxidation on the contacts, damage to the so-called “chip”, dirt on the contacts, and so on.
• Throttle valve not fully closed or throttle pipe clogged.
• Clogged upper tube of the crankcase ventilation system.
• The so-called “glitch” of some ECU firmware. This is especially true for domestic Lada cars with firmware “January-7.2”.

Posts 6

1 Topic by rybozavr 2015-04-03 15:13:11

Topic: Problems with starting the engine when cold (p1514)

Hello. Recently I started having problems starting the engine when cold. It was possible to start it only with a boost of gas. At the same time, at idle the car has low revs and floats. After warming up the engine there were no problems with starting and speed. Let it sit, cool down, and do the same thing again. The check didn't light up at first. Yesterday it caught fire. It gave errors 0300, 0301 and 0507. Replaced the IAC with a new one. It seems that the revolutions have stopped floating, they stay around 900. But the errors have not disappeared, plus a new one has been added - p1514 - Open circuit of the idle air regulator control circuit. I don't know what to think next.

2 Reply from iAllexx 2015-04-03 17:35:47

Re: problems with starting the engine when cold (p1514)

3 Reply from Sergey VAZ 2111 2015-04-03 22:43:27

Re: problems with starting the engine when cold (p1514)

Four sensors regulate the engine—oxygen sensor—air flow sensor—idle speed sensor—throttle sensor. take a look yourself

Added: 2015-04-03 23:43:27

Four sensors regulate the engine—oxygen sensor—air flow sensor—idle speed sensor—throttle sensor. take a look yourself

By the way, ignition and quality of gasoline. apart from good compression

4 Reply from 7491cm3x 2015-04-04 05:41:56

Re: problems with starting the engine when cold (p1514)

The errors are not related to each other. Conclusion - most likely there is a problem with the wiring somewhere. I think it's worth checking from the ECU.

5 Reply from rybozavr 2015-04-06 09:19:58 (2015-04-06 09:13:19 edited by rybozavr)