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.
Consequences of engine tripping
A malfunctioning power unit not only leads to discomfort while driving, but also to more serious problems. The fuel that enters the idle cylinder and does not burn flows into the crankcase with oil. The fuel mixture makes the engine oil more liquid and loses its properties.
If the problem in the engine is not corrected immediately, the pistons and rings will begin to wear out over time. The lack of a lubricating film leads to the formation of nicks and scuffs on the cylinder walls. Thus, the appearance of extraneous noise in the engine leads to the need for major repairs.
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:
Checking the ignition system
Almost all car enthusiasts begin checking the 1.6-liter VAZ-2112 engine by testing spark plugs. With their help, you can find a cylinder that is not working at full capacity. To do this, you must first remove the high-voltage wire from each cylinder one by one. When you touch a non-working cylinder with this, the nature of the operation of the power plant will not change.
Next, do a spark test to rule out problems with the power supply to it. To do this, 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. After this, look at the spark plug body and evaluate the signs as a whole.
- If the spark is very weak, and the spark plug visually has a lot of carbon deposits, then the reason for this may be a non-functioning air filter. When it does this, dust gets on it, which mixes with oil and fuel.
- If the electrode of the spark plug is intact, but carbon deposits have formed on its body, then there may be several reasons: incorrectly adjusted ignition (detonation is advanced), an error in choosing a spark plug, or a lean fuel mixture.
- If only the electrode burns out, then the malfunction is hidden in excessive enrichment of the fuel mixture, incorrectly selected spark plug, low compression pressure, air filter impermeability, and delayed detonation.
Inspect the spark plug well; if you find oil in it, then you need to adjust the operation of the caps responsible for its supply. Most often, this malfunction requires replacing the valve stem seals. There should be no cracks on the spark plug body; if there is damage, replace the spark plug, even if it is visually intact.
Additionally, it is recommended to replace high-voltage wires, as they may have microcracks. In this case, the spark is weak, but the spark plug is visually intact. If this element is damaged, you must act according to the list above. The breakdown can be fixed by adjusting the ignition, power and air supply systems.
With a weak spark, the reason sometimes lies in the timing belt - it may be loosely tensioned, which is why it has shifted by several teeth. Also check the on-board computer; perhaps there is an error in its memory, which is why systems related to the power plant do not work correctly.
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.
Engine power problems
Malfunctions in the engine power system can be caused by the use of low quality fuel. Solving them is quite simple - you need to refuel the car in a trusted place. As a rule, after this the problem is solved. It is important to select the correct octane number of fuel; in the VAZ-2112 it is strictly forbidden to use AI-80, which has now practically disappeared from gas stations.
To get rid of engine vibration, additionally clean the injectors. You will have to disassemble the assembly 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 best to thoroughly flush the unit; it will take more time, but will definitely solve power problems. Additionally, replace the spark plugs.
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.
Piston system and valves
The valve and piston systems are checked together. Remove the breather hose from the manifold; if white smoke comes out of it, then the engine is definitely stalling due to a piston failure. Disassemble the engine and find the cause. Most often, it lies in the occurrence of rings; to correct this problem, it is necessary to remove the pistons.
If there is no smoke or colorless gas emitted, the problem is hidden in the valves. Measure the compression in them; 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.
During normal compression, tripping is caused by incorrect valve adjustment. They may be too tight or, on the contrary, loose. Remember that on the VAZ-2112 the operation of the valve system must be adjusted regularly.
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.
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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.
Malfunctions of the crankshaft position sensor
The on-board computer may send incorrect impulses to all vehicle systems. Most 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 needs to be removed for testing.
The test is carried out with an ohmmeter. Readings should be between 550 and 750 ohms. If they are outside this range, then the sensor must be replaced as it is faulty. Usually, after installing a new element, the power plant begins to work normally.
If the on-board computer generated an error for this sensor, then after replacing it, remove the terminal with the minus sign from the battery. This will help clear the ECU memory of the fault record.
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”...
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.
