Why the engine stalls: signs and malfunctions

Causes

If the engine of a Lada Kalina is misfiring and the check light is on, this means that one of the elements is disrupting the entire operation of the engine. To determine the reasons, the motorist must have some constructive knowledge, as well as the structure and operating principle of an injection-type internal combustion engine.

If the Kalina engine fails, then the reason should be sought in the formation of the air-fuel mixture, or there may be no spark in one of the cylinders. Also, the cause of tripping may be faulty electronics. So, let's look at which nodes need to look for reasons:

Low quality fuel.
Fuel elements: pump, filter, injectors.
Spark generator: spark plugs or high-voltage wires.
Air supply: filter and throttle.
Engine mechanics: valves, pistons and others.
Electronics: sensors and control unit.

Why does the engine stall and the diagnostics show nothing?

Antifreeze temperature sensor.
Mass air flow sensor.
Idle speed regulator.
Knock sensor.
Throttle position sensor.
Crankshaft position sensor.

Diagnostics of meters is carried out using a multimeter. For this purpose, you should disconnect the wire block and ring each pair of contacts.

The last place that can cause problems is the electrical engine control unit. Probably the mechanics and mechanics think that such a unit is worth getting into right away. However, every connection to the ECU has consequences for its operation. One awkward movement can disrupt functions that lead to disaster. Alas, you can’t count the error any other way, so a phenomenon emerges.

Having connected to the control unit, you need to use special programs to find where the fault lies and remove it either at the software level or in the mechanics.

The reasons why the Check Lada Kalina warning light may come on, and besides the appearance of engine tripping, are quite easy. You only need to know the design of the unit, and additionally the mechanism of operation of its systems and components. It is not often possible to fix faults without the help of others, so if trouble occurs, it is recommended to contact a car service center.

VAZ Kalina, 8V, 2011 After starting the engine, after about half a minute, it starts to oscillate.

The check light is on, the on-board computer states that there is a misfire in cylinder 2. This continues for 3-4 minutes until it warms up a bit. I clear the errors, start it up and everything works fine.

This only occurs with a cold engine. The pressure in the cylinders was checked - normal, in the injectors - normal, the spark plugs were replaced (2 sets), the installation of a known working ignition module with armored wires, the installation of a known working ECU.

Elimination methods

To eliminate the tripping effect on a vehicle, you need to have enough time, since it may take a whole day, as well as tools. To work, you will need a set of wrenches, screwdrivers and heads, as well as a multimeter. So, let's look at how to troubleshoot problems that have arisen.

Low quality fuel

Many experienced Kalinovods on the forums describe what is happening to the Kalina engine as the use of low-quality fuel. It is because of this that the “Check Engine” warning light on the dashboard may light up.

The on-board computer recognizes a poor-quality mixture by the combustion process. But that's not the worst thing. Poor quality gasoline can clog elements throughout the system. The consequence of long-term use of this type of fluid can lead to the valve mechanism, as well as the pistons, burning out. In this case, major repairs become inevitable, since parts wear out at an accelerated rate.

If it is discovered that the gasoline is of poor quality, the motorist will face a whole range of repair operations, namely:

Cleaning the fuel tank and replacing the filter.
Cleaning or changing spark plugs.
Dismantling and checking injectors.
And finally, disassembling the cylinder head.

After cleaning, you need to fill it with high-quality gasoline and drive it. The CHECK icon should turn off on its own when high-quality fuel enters the system.

Fuel cells

A clogged fuel pump and filter can cause a tripping effect. So, the fuel pump has a mesh filter that could become clogged. To eliminate the malfunction, it is necessary to pull out the pump and inspect its condition. As for the fuel filter element, it is recommended to replace it, since most likely it is clogged.

Spark generator

Spark plugs and high-voltage wires play a role in spark formation, which also tend to wear out. Thus, the motorist needs to unscrew the spark plugs and inspect them for cracks.

Then, it is worth checking them for resistance and contact. This is done on a special spark plug stand, but it can also be done manually without leaving the car. Owners of old Lada and Volga cars are well familiar with the second method.

High-voltage wires are checked quite simply. Using a multimeter, an indicator such as resistance is measured. For each wire it should be around 5 ohms.

Air supply

The third group, which is responsible for the normal combustion process and the formation of the air-fuel mixture, is the air supply. The main elements of the system can be considered the air filter and the throttle valve.

The condition of the air filter element plays a big role in how the fuel burns. Therefore, when searching for the causes of tripping, it is necessary to examine the condition of the assembly and the part. If the air filter is too clogged or has oil residues, then this is the cause of the engine tripping, since a normal air-fuel mixture is not formed.

The second element of the system, the contamination of which leads to the engine tripping, becomes the throttle. To eliminate the malfunction, it is necessary to remove the unit from the vehicle and clean it. This is usually done using special products or carburetor cleaning fluid. Along with this unit, it is recommended to clean the air supply corrugation.

Motor mechanics

Every motorist's worst dream is damage to the engine mechanics. In most cases, this leads to a major overhaul of the power unit. In this case, tripling could be caused by burning out of the valves and the formation of a gap between the valve and the seat.

To eliminate the malfunction, it is necessary to dismantle the block head and inspect the condition of each valve. If there are burnt elements, you need to prepare for the worst - repairing the cylinder head.

It is also recommended to inspect the condition of the components and parts of the cylinder block; perhaps they are also worn out and require the intervention of the motorist.

Electronics

The “Check Engine” warning light may come on due to faulty electronics, namely the failure of the sensors. This may result in a tripling effect. To eliminate the malfunction, it is necessary to carry out diagnostic operations, namely, check a number of sensors. Malfunction of which meters can lead to motor tripping:

Coolant temperature sensor.
Mass air flow sensor.
Idle speed regulator.
Knock sensor.
Throttle position sensor.
Crankshaft position sensor.

Diagnosis of meters is carried out using a multimeter. To do this, you should disconnect the wire block and ring each pair of contacts.

The last place that can cause problems is the electronic engine control unit. Many mechanics and mechanics believe that this unit is worth getting into first. But every connection to the ECU has consequences for its operation. One wrong move and you can disrupt functions that can lead to disaster. But you can’t count the error any other way, so it turns out to be a paradox.

Having connected to the control unit, it is necessary, using special software, to determine where the fault lies and eliminate it either at the software level or in the mechanics.

IAC cleaning

Do-it-yourself troubleshooting of the idle air regulator consists of simply washing it to remove carbon deposits. To do this you need to follow the instructions:

disconnect the wire plug from the sensor;
Unscrew the two fastening screws with a small shaped screwdriver and remove the sensor from the mounting socket;
Clean the needle cone using WD-40 or carburetor cleaner.

The same means can be used to wipe the regulator contacts and the entire throttle assembly.

Throttle valve

When the driver presses the gas pedal, the throttle valve opens, allowing more air into the combustion chambers. Oxygen is mixed with fuel, after which the prepared mixture burns. The more the driver presses the gas pedal, the wider the throttle opens and the more air flows in. But often carbon deposits accumulate on the walls of the damper, and its loose closure causes disturbances in the operation of the power plant.

The throttle assembly is located behind the engine air filter. This arrangement is typical not only for the Lada Kalina, but also for many other cars. Depending on the engine type, the damper operation can be controlled by an electronic gas pedal or a cable drive.

Many car enthusiasts have come across the concept of floating engine idle speed. For the Lada Kalina, as practice shows, this is a common malfunction that can be fixed with your own hands, but sometimes you will need to use a car service.

RPM fluctuates at idle

After talking with car owners, as well as with car service technicians, we can conclude that floating engine speed on a car is a fairly common effect. As a result . Most car enthusiasts assure that this malfunction appears during warranty service.

This may be due to many factors.

Let's consider the main reasons for the occurrence of floating engine speeds:

Fuel system malfunction
.
Malfunction of fuel system elements
Ignition problems
.
Problems with the ignition switch or wiring
ECU errors
.
Troubleshooting ECU errors
Poor quality fuel
.
Low-quality gasoline directly affects the operation of the power unit

All these reasons contribute to the appearance of such an effect. The most common reason is problems with injection.

Treatment methods

Before moving on to correcting the problem, it is worth noting that floating speed is just the beginning, since untimely elimination of the malfunction can lead to a “start-stall” effect.

So, let's consider the sequence of actions to eliminate the causes of floating engine speed.

Fuel system

As practice and experience show, floating speeds appear in the event of an uneven supply of fuel to the combustion chambers, or a constant change in the amount of the fuel mixture.

Cleaning a removed injector

First of all, this is due to the injectors, which may be dirty. At the same time, this may not be felt when driving, but at idle the tachometer will immediately show it. Therefore, it is necessary to dismantle and check the injectors on a special stand.

Clean fuel pump mesh

Also, the malfunction may be caused by a breakdown of the gasoline pump, which does not supply fuel evenly or a clogged fuel filter. If necessary, you need to replace the filter element and check the fuel pump.

Cleaning the throttle body

A change in the amount of fuel mixture may be due to a clogged throttle or worn air filter. Therefore, the filter element changes, and...

Removed throttle before and after cleaning

Ignition problems

Problems with idle speed may occur due to incorrect operation of the ignition system. Namely, it may be related to the lock or wiring. So, it is worth checking and, if necessary, replacing damaged elements. It is best to change the ignition switch assembly and test the wires that go from it to ensure they are working properly.

ECU errors

Often, a car malfunction is associated with, as well as a malfunction of the controllers on the board. Of course, another reason could be the firmware that is out of order. Many car enthusiasts change the operating system, but this does not always help.

ECU removed from the vehicle

As practice shows, an ECU malfunction can pose a problem for the performance of many systems. Therefore, if the fault cannot be eliminated using the previous methods, it is necessary to replace the control unit. Of course, installing the operating system from the Lada Kalina Sport K-Line can help, but the problem does not always disappear completely.

Poor quality fuel

In many cases, poor quality of the fill can cause clogging of the fuel pipeline and injection system, which in turn gives the effect of uneven fuel supply. To eliminate the malfunction, you should drain the old fuel, clean the fuel system and fill in with new high-quality gasoline.

It is worth understanding that not only the operation of the engine, but also its durability depends on the quality of the fuel.

Finding the cause of the malfunction

The engine starts to stall when the fuel pump malfunctions and does not pump in the required amount of fuel, or when it does not burn completely. The substrate of the first case is not only the fuel pump itself, but also the conductive system. And the second reason may be related to problems with the ignition system, spark plug carbon, or improper operation of the engine valves.

If the fuel system is not working properly

, the feeling that the engine is stalling will develop a minute after the start, and then will only increase. If there is a narrowing of the pipeline, or there is no power to the fuel pump, such problems are not uncommon. You can check this after exposing the relay: start the engine, check the functionality of the pump and relay. In this case, the on-board computer will not show errors.

If there is a problem in the valve apparatus itself, in the spark plugs or in the ignition system, it will also manifest itself. Namely: the engine will start normally, but a moment later it will start to stall. Similarly, the power unit fault light should light up, because standard sensors perceive an excess (or lack) of fuel.

When such interruptions in the fuel supply occur, twitching develops, because the amount of gases produced in different engine operating cycles varies.

Problems with valves on Lada Kalina

On the 8-valve Lada Kalina engine, the valves are less reliable than on the 16-valve version. This is a design flaw of engineers that car enthusiasts will have to deal with.

For diagnostics, you will need to at least look at the electronic control unit and compression in the cylinders. This will have to be done at a car service center, where computer diagnostics will initially be offered (see the article “What is included in engine diagnostics”).

Often, there is no result that can be relied upon to fix the problem, because the source of the breakdown is not in the sensors, but in the mechanical part of the car. Therefore, you will have to measure the compression in the cylinders. If it is normal, you need to remove the engine valve cover and inspect the gap between the valves. Its normal value is 0,2-0,35

It is important to set the valve clearance in this range, after which the engine stops running and the “engine malfunction” light goes out. By the way, valve adjustment for Kalina is required every 60,000-70,000 kilometers. But when gas is used as fuel, they need to be adjusted more often - every 20,000-30,000 km.

conclusions

Floating idle speed of the Lada Kalina engine can cause other, more serious problems to appear. So, if such an effect occurs, it is necessary to find the cause and eliminate it. If you can’t do it yourself, you need to contact a car service, where they will quickly find and fix the problem. Repeatedly, due to the constant effect of floating speed, car owners have had to replace the electronic control unit.

Like many people, I had this problem. Believe it or not, I just changed the air filter and everything is fine, everything has been fine since the summer (ugh, ugh, ugh). Only now the fan is soaring and turns on when the engine is cold. Can someone talk to me about this topic?

Sources:

https://m.etlib.ru/qa/podskochili-oboroty-16842 https://carfrance.ru/pochemu-plavayut-oboroty-na-xolostom-xodu-lada-kalina-prichiny/ https://wroom.ru /forum/topic/7505 https://www.lada-forum.ru/index.php?showtopic=47669 https://carfrance.ru/pochemu-plavayut-oboroty-na-xolostom-xodu-lada-kalina-prichiny /

The Lada Kalina 1.4 16 cl engine is having problems, please give me some advice!

April 8, 2020, 1:26 pm #26

Kalinovich, April 7, 2020, 10:15 pm, #25

Tell me, is it possible to determine which cylinder is not working on such engines by one by one pulling the ignition coils from the spark plugs? Can the engine start again after the loss of throttle? There was a tripping, I pulled out the coils, it turned out that all the cylinders were working, after that the tripping disappeared. I drove 80 km safely and the fuel pump burned out. Replaced it, started everything fine, drove to a friend 15 km away, smoked again, started the engine and it started running again, what should I do? What I did: 1. the spark plugs were changed 2. the compression was normal 3. the injectors clicked after applying voltage to them from the battery through the wires

Why is it so difficult? To check, I simply removed the connectors from the coils. In addition, failure of the coils leads to the Check

April 8, 2020, 20:52 #27

So the check light is on. Actually some kind of bullshit. I started the car and felt numb. I went, drove about 2 kilometers, got up and turned it off. After 10 minutes I started it and one cylinder was working. I rang the injectors - 3 of them are not responding. How can this be? Before this all 4 injectors were clicking.

Lada Vesta MTZ-1221

April 8, 2020, 21:00 #28 + 1

If a misfire is detected, the computer turns off the injector.

April 8, 2020, 21:14 #29

Kalinovich, April 8, 2020, 20:52, #27

Is the engine really running on one cylinder?

But in the event of a misfire, the ECM turns off the injectors, Alexander is right. Just to save the neutralizer.

April 9, 2020, 06:53 #30

When the engine starts, it shakes like a drunk for 20 seconds and then stalls. Regarding the ECU. I supply power to the injectors directly from the battery, what does the ECU have to do with it? And only one clicks. How do you even remove the injectors on a 16 valve viburnum?

April 9, 2020, 07:33 #31

I just don’t know what to explain in the service. What's just causing the engine to fail? They'll start with the coils, spark plugs, which I can change myself. How to determine the true cause of the tripping, so that if there are injectors, then let them do them.

April 9, 2020, 08:22 #32 + 1

Kalinovich, April 9, 2020, 07:33, #31

The diagnostician will begin by deciphering the ECM error codes. Diagnostics in a normal service includes assessing the condition of the spark plugs, i.e. There is no need to pay separately for this operation. Well, you should tell me that the spark plugs have already been changed and it didn’t do anything. It seems to me that your problem is not at all with them, some kind of floating fault. Did you fill the ECM?

April 9, 2020, 10:11 #33

Kalinovich, April 7, 2020, 10:15 pm, #25

Signs of a malfunction

When a Lada Kalina car has an engine misfire, this means that its engine only has 3 cylinders instead of 4. This is due to malfunctions in the car’s power unit, which can manifest itself in the occurrence of extraneous noise both when driving and while idling.

The following points are considered the main signs of “tripleting”:

failures to start the engine of various natures, accompanied by extremely strong vibrations transmitted to the vehicle interior;
all cases when the engine does not start;
blackening of one of the candles;
a change in the sound of the exhaust, while an experienced auto mechanic can even determine by the sound of a running engine that it has some kind of defect;
deterioration in the dynamic and speed characteristics of Kalina, a sharp increase in fuel consumption in all modes;
“strange” readings from instruments, such as the tachometer;
jerking during acceleration in any gear engaged.

If at least one of the listed signs appears, you should immediately stop using the car and send it for a comprehensive diagnosis. The fact is that the symptoms described can serve as signs of the appearance of a variety of engine defects, which can masquerade as other malfunctions.

For example, a burnt spark plug may simply be replaced or cleaned by the car owner without identifying the reasons for this phenomenon, and at this time the car’s engine may already be seriously damaged.

It is worth talking separately about those cases when the presence of a malfunction is signaled by the automatic diagnostic system installed on Kalina. If the engine icon lights up on the dashboard, you should immediately stop driving and call a tow truck to transport the car to a car service center. The fact is that it is there that they can reliably decipher the sensor readings and establish why the check engine light is on.

The main consequences of operating a “triple” engine can be increased wear of its rubbing parts, that is, rings, piston and cylinder. The fact is that the idle cylinder still receives gasoline, which washes away the protective layer of oil from them. As a result, it is quite possible that the entire cylinder will have to be replaced, and in the worst case, the same fate awaits the entire power unit.

Symptoms of a problem

After several years of operation of the Lada Kalina, the engine knock sensor may fail. In most cases, this happens for natural reasons, such as a break in internal contacts. In this case, the car exhibits the following symptoms:

there is a distinct knocking sound from the engine;
fuel consumption increases;
engine troits;
craving disappears;
dark smoke;
error P0327.

Perhaps the problem is related to oxidation of the contacts, a broken wire, or a pop-out block. But most often, it is the knock sensor that needs to be replaced.

For reference! The ECU unit can remember the registration of 2 errors: 0327 and 0328. The first indicates a low amplitude, and the second, on the contrary, indicates that it exceeds the norm.

What can cause "triple"?

The causes of the described malfunction can be very different.

To reliably install them, you must first find the faulty cylinder. It is recommended to start such a search from the very moment when it was discovered that the check engine light was on. At least, such recommendations are given by the manufacturer who installed an automatic fault warning system on the car.

The search procedure is quite simple. To do this, it is enough to disconnect the power tips from the spark plugs one by one. As a result of this alternate shutdown, it is possible to determine the inoperative cylinder by the sound of the engine. If the sound of the engine has changed, this means that the culprit of the “triple” has been detected.

If the check light on Kalina is on and computer diagnostics of the engine is carried out, the faulty cylinder will be indicated by the computer. At the same time, this diagnostic method can also help to establish the initial causes that led to its malfunction. They could be the following:

incorrectly set ignition timing;
presence of air leaks in the vacuum brake booster;
defective spark plugs;
breakdown of electrical wiring and capacitor wires;
presence of air in the exhaust manifold;
wear or breakage of piston rings;
burnout of pistons and valves;
incorrect valve timing;
cylinder head defects;
severe wear of the valve stem seals;
poor carburetor adjustment;
air filter contamination;
use of spark plugs incompatible with this engine.

In this case, the main malfunction leading to the fact that one of the cylinders becomes inoperable is considered to be the failure of the spark plugs. A sign of this may be the fact that Kalina’s engine does not warm up well, especially in the morning.

In addition, it is always worth making sure that when operating a car, only those spark plugs that are recommended by the manufacturer are used. This can extend the life of the engine for a very long time.

Lada Kalina 16 valve troit engine