Interruptions in engine operation sometimes lead to complete failure. Tripletion is the operation of 3 cylinders, which causes many problems. First of all, comfort during movement disappears, the power of the power unit decreases, severe excessive fuel consumption occurs, and unprocessed gasoline vapors are felt in the exhaust gases. Let's figure out what reasons cause the VAZ-2112 engine, which has 16 valves, to trip.
Causes
General view of engine 21124 16V.
The VAZ 2112 engine has problems with the 16 valve injector for various reasons. To find out the specifics, the motorist needs to know the design features of the power unit, as well as have some vehicle repair skills.
So, VAZ 2112 has 16 valves and the engine is tripping, what could be the reasons for the effect:
- Poor quality fuel.
- Malfunction in fuel supply elements.
- Malfunction of air intake units.
- Malfunction in the ignition system.
- The problem lies in the electronic part of the car.
Solution methods
Before you begin the process of analyzing the causes in more detail, as well as methods for eliminating the malfunction, it is worth understanding that if the car owner is not sure that he can fix the breakdown or does not carry out the correct diagnosis, then it is better not to get involved himself. In this case, it is recommended to contact a professional car service.
Poor quality gasoline
Poor quality fuel is everywhere.
Troubleshooting on a VAZ can primarily occur if low-quality fuel gets into the air-fuel mixture formation system. Thus, most domestic gas stations do not have a very good reputation due to the fact that they sell fuel that does not meet the standards.
So, if gasoline has already entered the system, it most likely clogged the gasoline supply system, and possibly left its mark on the spark plugs. In the worst case, what all car enthusiasts fear is burnout of the valves or piston mechanism.
Therefore, it is better to take the choice of a gas station seriously, since major engine repairs will cost more than saving on good gasoline. It is recommended to overpay a little for fuel, to regularly change fuel cells and carry out constant repairs.
Fuel cells
The process of replacing a clogged fuel filter.
The first place to look for a problem is the fuel supply to the fuel mixture formation system. Thus, clogging of the elements can cause an insufficient amount of fuel to flow into the combustion chambers.
First, you need to check the performance of the fuel pump, or more precisely, an element such as a mesh filter. It is located on the pump itself and often becomes clogged due to the use of low-quality fuel. But, as soon as it is changed, the operation of the power unit returns to normal.
It is recommended to replace the fuel filter along with the filter screen of the gasoline pump, since in this case it becomes clogged and fuel cannot fully pass through the fuel lines. The part is placed under the rear right wheel from the bottom. The element is changed within 30 minutes.
The process of cleaning injectors with your own hands.
The third element, which is responsible for supplying the fuel mixture, is the injectors. Their contamination leads to the fact that the engine begins to stall. In order to check their functionality, it is necessary to remove the elements from the engine. Diagnostic operations are carried out on a special washing stand. If during the inspection it is discovered that there are faulty injectors, then they should be replaced. You should not install faulty parts in the power unit, as this will lead back to tripping and even greater malfunctions than the existing ones.
Air supply
The engine may stall due to problems with the air filter.
Normal air supply is the key to the formation of an air-fuel mixture and a normal combustion process. Thus, a malfunction of one or more air supply elements can lead to the engine starting to choke. These include the air filter and throttle valve.
The air filter element must be changed every 20,000 km, since after this it becomes clogged and becomes unusable. But it is necessary to monitor the condition of the throttle valve, since it is unknown when it will become clogged and begin to cause problems. Typically, motorists clean this unit themselves, using special products or a carburetor cleaner.
Why is it stupid? Basic faults
Type of VAZ-2112 engine
There are not many reasons for the effect when the 16-valve engine on the VAZ-2112 16 valves stalls. Of course, you will have to tinker a little in order to find the true reason in one case or another, but otherwise there is a direct road to a car service center. For those who have decided to repair their car themselves, this information will be useful.
So, let's look at the main reasons for this effect:
- The problem is in the fuel system.
- The crankshaft sensor has failed.
We clean the sensor from dirt and dismantle it.
- Poor quality fuel.
- The problem is the throttle.
- Ignition fails.
- ECU errors.
The main reasons are considered, and you can move on to solving these problems.
Methods for solving the problem
To eliminate failure during overclocking, you need to check all the components listed below step by step. This is a considerable amount of work, but the car enthusiast will be able to save a sufficient amount of money, which would have been charged to him at a car service center. Of course, for those who don’t understand the design of a car, that’s the way to go, or ask your friends who will fix the problems for half the price. But, if you follow the instructions, you can figure it out yourself.
Poor quality fuel
Poor quality fuel is a common cause of engine breakdowns
Of course, in our country, low-quality fuel causes many misfortunes and troubles for motorists. It is not possible to check the fuel at a gas station, so everyone is already struggling with the consequences. The only thing that can be done is to carry out regular diagnostics and cleaning of the fuel system.
Fuel system
Injectors on the fuel rail removed from the engine
The first line of engine protection is fuel filters, which sometimes fail and not enough fuel gets into the engine. On the other hand, when completely clogged, the injectors are clogged, which at low speeds give a normal amount of mixture, but if the engine is accelerated, the amount of mixture remains the same and a failure appears at low speeds.
The way out of the situation is to replace the fuel filter, clean or replace the gasoline pump mesh, and diagnose and replace failed injectors. The latter usually go through a cleaning stage, but this does not always help and they have to be replaced.
Throttle valve
Cleaned throttle body
A stuck throttle valve and insufficient air supply can cause the engine to become sluggish when accelerating. This is due to a non-optimal fuel mixture. In this case, the solution to the problem is cleaning.
Ignition system
High voltage wires of the ignition system
Another reason that the car began to stall while accelerating could be interruptions in the ignition. So, it is necessary to check the spark plugs and high-voltage wires where breakdowns could occur. If necessary, damaged parts must be replaced. The manufacturer recommends replacing everything in sets.
ECU errors
List of electronic control unit errors
The last problem is that errors occur in the electronic engine control unit. If there is a large accumulation of errors, this can affect the operation of various vehicle systems. Therefore, as practice shows, resetting ECU errors leads to normalization of the operation of the power unit.
Self-diagnosis mode of the instrument panel on the VAZ-2112
Conclusion
The causes and methods of eliminating the malfunction of tripping on the VAZ 2112 16 valves are considered. If the problem still cannot be resolved, then it is recommended to contact a car service so that professionals can sort it out. Maybe it's time to replace the valves or rebuild the engine.
AutoNews / Reviews / Tests
Troit Engine VAZ 2112 16 Valves Reasons
What to do if you're having trouble
VAZ-2112 engine 16
valves
Interruptions in engine operation sometimes lead to complete failure. Tripletion is the work of 3 cylinders, which causes a huge number of problems. First, comfort during movement is lost, the power of the unit is reduced, severe excessive consumption of fuel appears, and unprocessed gasoline vapors are felt in the exhaust gases. Let's figure out what prerequisites cause the VAZ-2112 engine, which has 16 valves, to trip.
The engine heats up and starts to stall: why does this happen?
Almost every car enthusiast sooner or later encounters such a fairly common malfunction of the internal combustion engine, when the engine stalls. As a rule, in certain situations the engine stalls when hot or only when cold, and tripping can also occur constantly (regardless of the temperature of the power unit, operating mode, load level, etc.).
In short, engine tripping means that one or more cylinders are not firing, and there can be several reasons for such a malfunction. In this article we will talk about why the engine stalls after warming up, how the malfunction can be diagnosed, and what signs help to accurately identify the problem.
Consequences of engine tripping
A malfunction of the power unit not only leads to discomfort while driving, but also to more severe dilemmas. The fuel that enters the idle cylinder and does not even burn, flows into the crankcase with oil. The fuel mixture makes the engine oil more watery and loses its characteristics.
If you don’t immediately fix the problem in the engine, then over time the pistons and rings will begin to wear out. The absence of a lubricating film leads to the formation of nicks and nicks on the cylinder walls. Thus, the occurrence of extraneous noise in the engine leads to the need for major repairs.
Possible reasons
Malfunctions in the operation of the power unit are more likely to be caused by defects in one of several systems:
- ignition;
- nutrition;
- Timing belt (in particular valve);
- sensors and bortovik;
- piston group.
The VAZ 2112 16 valve engine is causing problems.
Without checking each accounting software (software), it is impossible to solve the problem. Therefore, start with diagnostics to narrow down your search.
Checking the ignition system
All car owners begin checking the 1.6-liter VAZ-2112 engine by testing spark plugs. They will help you find a cylinder that is not working according to the full program. For this purpose, you first need to alternately remove the high-voltage wire from each cylinder. When you touch a non-working cylinder, the nature of the power plant will not change.
Next, do a “spark” test to eliminate difficulties with supplying power to its surface. For this purpose, return the wire to the spark, place it on the engine
so that the electrode does not touch it. Crank the starter until sparking appears. Later, look at the candle body and evaluate the signs comprehensively.
- If the spark is very weak, and the spark plug visually has a strong carbon deposit, then the reason for this may be a non-functioning air filter. This causes dust to fall on its surface and mix with oil and fuel.
- If the electrode of the spark plug is intact, and carbon deposits have formed on its body, then there are several circumstances for you: incorrectly adjusted ignition (detonation is advanced), an error in selecting spark plugs, a lean fuel mixture.
- If only the electrode burns out, then the malfunction is hidden in an excessive enrichment of the fuel mixture, an incorrectly selected spark plug, low compression pressure, air filter impermeability, and delayed detonation.
Troit VAZ 2110 16cl 1.5/REASONS/Troubleshooting
KEY-DOP
In this video you can see how to remove air leaks if the car is shaking
at idle and running.
Inspect the spark plug well; if you find oil in the computer, then you need to adjust the operation of the caps responsible for supplying it. In most cases, this malfunction requires replacement of the valve stem seals. There are no cracks on the spark plug body; if damage occurs, change the spark plug, even if it is visually intact.
Additionally, it is recommended to change high-voltage wires, because microcracks occur in them. Here the spark is weak, but the candle is visually intact. If this element is damaged, you must act according to the list above. The breakdown can be corrected by adjusting a set of accounting programs for ignition, power and air supply.
If the spark is weak, the reason lies in the timing belt - it is tensioned loosely, which is why it has shifted by several teeth. Also check the on-board vehicle, for you, there is naturally an error in its memory, which is why the accounting systems associated with the power plant do not work correctly.
VAZ 2110 troits engine
Engine problems, even episodic ones, always need to be addressed immediately. For example, it happens that at times the engine of a VAZ 2110 stalls, and many do not pay attention to this, continuing to operate the car as if nothing had happened. But this is the wrong attitude to this problem. Let’s look at the causes of this symptom and consider ways to quickly eliminate them.
When is it time to check the engine?
The engine should always run like a clock, that is, smoothly and without jerking, failures, or jumps.
At idle speed it is easy to notice that the engine is unstable. When such suspicions creep in, it is better to raise the hood and listen to the beats in all cylinders. “Troit” means one or two cylinders are inactive, since there are no conditions necessary to ensure the processes in their combustion chambers. As a result, the actual power of the power unit drops noticeably and gasoline consumption increases. There is also a tendency to stall, for example at intersections, at traffic lights or while warming up. At the same time, when the engine of a VAZ 2110 fails, the reasons for such a malfunction can be different. You can find out which cylinder has problems in one simple and long-known way. With the engine running, you need to remove the high-voltage wire from each spark plug one by one. If the cylinder was working properly before, then when it is turned off there will be a noticeable dip and a drop in speed (look at the tachometer scale). If there are no changes after removing the wire from the spark plug, we can safely assume that the problem is precisely in this cylinder - it was not working before the shutdown.
Causes of unstable motor operation
Here is an approximate and incomplete list of reasons for the “ten” engine tripping:
VAZ 2110 troits engine
- spark plug malfunction, getting wet;
- breakdown of a high-voltage wire;
- extremely low quality gasoline;
- air leaks in the vacuum brake booster system;
- loss of tightness in the area of the intake manifold;
- need for valve adjustment;
- valve or piston burnout;
- development of valve levers;
- breakage of piston rings;
- cylinder head gasket breakdown;
- deterioration or unsuitability of valve stem seals.
We will not dwell on all the points one by one, but it makes sense to note some methods for quickly identifying easily repairable breakdowns. So, for example, a non-working candle becomes an elementary problem. The same applies to broken armored wires. The easiest way to identify a malfunction is to replace each of these elements one by one with a known working one. It is also sometimes possible to notice sparking in the dark, which will indicate to you a damaged high-voltage wire.
There can be plenty of discussion about problems with valves, because such a “disease” is very typical for VAZ engines. First of all, we must not forget that every 10-20 thousand km the valves must be adjusted so that they are completely closed or opened during operation. But infrequent cases of valve and even piston burnout require accurate measurements of compression in the cylinders and subsequent opening of the power unit. In this case, the wear and tear of the piston rings is determined by pouring a small amount of engine oil into the cylinder - if the compression has increased, then the problem is most likely in the rings.
Engine power problems
Malfunctions in the accounting (software) engine power supply are usually caused by the use of low quality fuel. Solving them is quite easy - you need to refuel the car in a proven place. You, after this fact the problem is resolved. It is fundamentally correct to select the octane number of the fuel, in the VAZ- 2112
It is strictly forbidden to use the AI-80, which has virtually disappeared from gas stations at the moment.
To get rid of engine tripping, additionally clean the injectors. You will have to disassemble the unit where they are located and clean the dampers with a special compound. It is strictly forbidden to pour chemical compounds into the fuel tank. It is better to thoroughly flush the unit; it will not only take time, but will definitely solve problems with nutrition. Additionally, change the spark plugs.
KEY-DOP
Piston system and valves
The valve and piston systems are inspected together. Remove the breather hose from the manifold; if snow-white smoke comes out of it, then the engine is definitely shaking due to a piston failure. Disassemble the engine and find the cause. In most cases, it lies in the occurrence of the rings; to correct this problem, you need to remove the pistons.
In the absence of smoke, as it is also called, dull gas emissions, the problem is hidden in the valves. Determine their compression; if the value is less than 11, then the valve is burned out. To replace the valve, you need to remove the head and then grind it in.
With normal compression, tripping is caused by incorrect valve adjustment. They will be very tight or, on the contrary, weakened. Remember that on the VAZ-2112 you need to adjust the operation of the valve accounting system often.
Malfunctions of the crankshaft position sensor
The bortovik can send incorrect impulses to our client's complex of car accounting programs. More often
this happens if one of the sensors is faulty. Incorrect engine operation is often associated with a malfunction of the crankshaft position sensor. It must be removed for testing.
The test is carried out with an ohmmeter. Readings range from 550 to 750 Ohms. If they fall outside this spectrum, then the sensor must be replaced because it is faulty. Usually, after installing a new element, the power plant begins to work normally.
KEY-DOP
If the on-board vehicle generated an error for this sensor, then after replacement, remove the terminal with the minus sign from the battery. This will help clear the ECU memory of the fault record.
There is a special offer on our web portal. You should get a free consultation with our corporate lawyer by simply asking your own question in the form below.
Why does the VAZ 2112 engine suffer from injector problems?
One of the most frequent questions from owners of Russian cars is why the VAZ 2112 engine has trouble with its 16-valve injector. This is a fairly common occurrence. At the same time, there may be several circumstances, and it is quite difficult to find them. At a minimum, you need to know where to find the problem. If you ask any motorist about the reasons for this phenomenon, you can hear a variety of advice. But often they are all one-sided. And the search must be approached deliberately, checking all possible options. Only then can you be sure to find the problem and remove it. First, decide on the symptoms of “motor tripping”...
They consist in the unstable operation of the engine, while at the same time it usually rumbles like a flabby Cossack. This is especially noticeable on four-cylinder units. You can also see pronounced vibration in the engine compartment. The smell of gasoline is often felt in the cabin, and fuel consumption becomes significantly higher.
Why does the VAZ 2112 engine suffer from injector problems? Let's look at the 16 valve version. Mechanic's opinion.
One of the most frequently asked questions from owners of domestic cars is why the VAZ 2112 engine has a 16-valve injector. This is quite common. Moreover, there may be several reasons, and finding them is quite difficult. At a minimum, you need to know where to look for the problem. If you ask any motorist about the reasons for this phenomenon, you can hear a variety of advice. But often they are all one-sided. And you need to approach the search purposefully, checking all possible options. Only then will you be able to reliably find the fault and fix it. First, decide on the symptoms of “motor tripping”...
THE CONTENT OF THE ARTICLE
They consist in unstable operation of the engine, and it usually rattles like a decrepit Cossack. This is especially noticeable on four-cylinder units. You can also notice pronounced vibration in the engine compartment. The smell of gasoline is often felt in the cabin, and fuel consumption becomes significantly higher.
Main reasons
Why does the VAZ 2112 engine have problems with the 16 valve ? This phenomenon may be a sign of a malfunction of several systems at once. Therefore, it is impossible to answer this question unambiguously. When searching for a problem, you will need to check the following systems:
The check can be performed in any order. It's better to start with diagnostics. Very often this helps to narrow down the search to one system. Therefore, do not neglect this method of troubleshooting.
See:
Ignition
Before checking the entire system, it is necessary to identify the inoperative cylinder. This is done as follows: the high-voltage wires are pulled off the spark plugs one by one.
At the same time, the working cylinders react to this action, the engine begins to wither. If the non-working cylinder is disconnected from the ignition, the engine will not react to this in any way. After determining the inoperative cylinder, unscrew the spark plug. Problems with it or with the ignition system are indicated by the presence of fuel residues on it, the spark plug is “wet”. You can try replacing the spark plug and installing another high voltage. You may find that when you start the engine, it runs fine. If this does not happen, you need to continue checking. The simplest solution is to replace your module with one that is known to work. If this is the problem, then the engine should start working correctly. You can also check with a multimeter . To do this, you need to measure the resistance at the terminals. This needs to be done in pairs. Combine cylinders 1 and 4, as well as cylinders 2 and 3. The resistance should be between 5.2 and 5.5 ohms. The ignition module cannot be repaired; if it malfunctions, it will have to be replaced.
Why does the 16-valve VAZ engine fail?
VAZ engine
, the main reasons for uneven engine operation, as defined.
Troit VAZ 2110 16cl 1.5/REASONS/Troubleshooting
In this video you will see how to eliminate air leaks if the car is shaking
at idle and running.
Common causes of floating revolutions
So, we figured out the main symptoms. Now let's move on to the reasons. Let us immediately note that floating idle speed is often a problem with injection engines. The fact is that a complex ECM system is responsible for idling in this case.
This system assumes the presence of a controller, sensors and actuators. The control unit receives signals from sensors and transmits commands to actuators (for example, IAC), maintaining stable engine speeds at idle and other modes, regardless of the load on the internal combustion engine.
However, any failures that are associated with the supply of air, fuel, a violation of the composition of the working fuel-air mixture or its ignition, as well as various mechanical breakdowns will lead to floating speed.
As a rule, in practice, the idle air regulator causes a lot of problems for drivers. In fact, this is a stepper motor that has a conical locking needle. When the throttle valve is closed, air bypasses the valve through a channel that is closed by the needle.
If malfunctions occur in the operation of the device, the ECU is not able to correctly “select” the mixture composition at idle, as a result, the speed floats.
The mass air flow sensor also deserves special attention. During operation, the air flow sensor may become dirty or break down.
One way or another, the ECU does not receive correct data on air flow, which leads to disruption of mixture formation and jumps in engine speed.
Often, a floating engine speed can be associated with severe contamination of the throttle valve itself or mechanical breakdowns of the throttle, damage, or deformation. The damper may jam and not close completely.
To prevent such complications, it is necessary to periodically clean the throttle from dirt, and on many cars, additional training of the throttle is required after cleaning.
During diagnostics, you should also check the crankcase ventilation valves. Normally, crankcase gases are redirected to the intake, where they are mixed with air and fuel, after which they are burned in the cylinders.
By the way, if you touch on carburetor engines, the speed on the carburetor floats, usually due to the settings and adjustments of this device being messed up. Also, one should not exclude the possibility of a breakdown of the carburetor solenoid valve or clogging of the idle jet.
Let’s also add that if the speed of a diesel engine fluctuates, this is often caused by rust on the fuel injection pump blades. Corrosion occurs due to the presence of water in diesel fuel.
Nutrition
Often, the cause of engine tripping is the power supply system. First of all, the problem may be caused by low-quality fuel. To check, try changing the fuel. You can also try cleaning the injectors.
Their blockage can also cause tripping. For this purpose, special compounds are used. It is not recommended to pour cleaners into the tank. It is better to make a temporary power supply system; cleaning is carried out according to the instructions indicated on the package. After cleaning the injectors this way, the spark plugs should be replaced with new ones.
Valves and piston
These systems are tested together. First you need to remove the breather hose from the manifold. If white smoke comes from it, then the cause of the cylinder failure is definitely the piston. You should disassemble the engine and see what happened.
See:
Most often, the rings are stuck; to eliminate them, you will have to remove the pistons. If smoke , or it is almost colorless, then the problem is in the valves. First, let's measure the compression. If it is less than 11, then the diagnosis is a burnt valve. You will have to remove the head, change the valve and grind it in. If everything is fine with compression, remove the engine cover and check the valve adjustment. The engine can fail either because the valve is tight or because it is too loose. In any case, they need to be adjusted.
In-depth search for possible faults
At idle, the engine “trips” is caused by the presence of the ring. It is easy to confirm this malfunction. Simply remove the breather hose from the manifold. The presence of even a little white smoke indicates a problem in the piston system. Further repairs and diagnostics involve disassembling the motor.
The further procedure is as follows:
- measure the compression level of the valves;
- a burnt-out valve as the culprit of the malfunction will confirm the measurement result from 0 to 10;
- remove the head and replace the valve;
- wipe the valve;
- make the necessary adjustments to the valve system;
- make sure there are no jammed valves.
It is much less common to blame the crankshaft low sensor for deviations in operation. You can check this by removing the device from the car.
Before dismantling, it is necessary to fix its original location so as not to make a mistake when reinstalling it. After this, the resistance level of the inductive coil is measured.
The recommended value level ranges from 550 to 750 Ohms. Deviations upward or downward indicate the need to replace the sensor. You cannot delay this, otherwise one problem, like dominoes, will provoke a number of others.
Crankshaft position sensor (CPS)
Often the engine stalls due to problems with the DPKV. To check, you will have to remove this sensor from the engine. Be sure to mark its position on the engine.
After removal, you need to measure the resistance of the sensor inductive coil. The multimeter should show a resistance between 550 and 750 ohms. Anything more or less indicates a sensor malfunction. It needs to be replaced. There are other checking methods, but they are difficult to apply in a regular garage.
Now a short video with another reason.
Where to dig if the engine is not working?
There may be several reasons for interruptions in engine operation. And the case when the engine runs on three instead of four cylinders cannot be confused with anything. And its “rattling” soon makes car owners think about speedy repairs.
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- About the expert:
Fan-auto
All my life I have been surrounded by cars! First, in the village, already in the first grade, I was rushing around on a tractor through the fields, then there was JAVA, then a penny. Now I am a third-year student at the Polytechnic Faculty of Automotive Engineering. I work part-time as a car mechanic and help repair cars for all my friends.
The video below shows in detail the symptoms when the engine stalls:
