The check is blinking and the 16-valve Priora engine is tripping

Registration
Entrance

To the beginning of the forum
Forum Rules
Old design
FAQ
Search
Users

I would be glad to have any thoughts on this matter, as at 60 thousand mileage some problems only appear.
The check is flashing - it means misfire. This is already understandable - it’s a troit. So diagnostics will not give anything.

How will it determine which cylinder (coil)?

Is there something to replace the voltage wires with as a test?

But he doesn't have them. Neither central. no other. The coil is weird (already answered). The problem is identifying it.

Nikoliaspb

Either go for diagnostics, or buy a working coil and change it successively until you get lucky. But this is if one is faulty. What if two are acting weird? Then either diagnostics or purchase of a bookmaker. Cheaper diagnostics. But BC will always come in handy. Saved me from going to diagnostics more than once.

But he doesn't have them. Neither central. no other.

It's time. change a couple of coils

In order not to prolong the topic, I’ll ask a question here, a problem has arisen.

While the engine is cold, it runs smoothly and pulls well. As soon as it warms up, it starts. When switching gears and adding gas, there is a failure, then a jerk, then a kick in the ass and we drive on without problems until the next shift. And when you start driving instead, the first press on the throttle starts to throttle, as soon as the revs rise above 2 thousand it works smoothly.

The fuel system has been checked, the pressure is normal, I changed the spark plugs just in case, it’s a mistake on the ignition.

Source

If the check light comes on when starting on a cold engine

If, when you turn on the ignition, there is no characteristic sound of fuel pumping, and the engine icon lights up on the panel, then most likely the relay supplying power to the fuel pump is faulty.

The exact location of this device depends on the specific vehicle model and may be in the immediate vicinity of the fuel injection control unit or near the fuse box. The reasons why the relay does not operate can be either a malfunction of the device itself or a failure of the fuse protecting it.

A faulty fuel pump relay must be replaced with a new one, and if the fuse blows, it is imperative to determine and eliminate the cause of this problem, since possible short circuits in the electrical wiring can lead to a car fire.

If there are problems with starting, a cold engine runs unstably, then the fuel injectors are probably clogged or their electrical wiring is faulty. To fix the problem, you need to flush the injection device and eliminate damage to the electrical control circuits.

The reason that the check signal lights up after starting the engine may be a malfunction of the device for absorbing gasoline vapors - the adsorber.

This happens if the absorbing element (activated carbon) becomes unusable or the solenoid control valve fails.

The engine is shaking and the “check” is blinking: possible causes of the malfunction

As you know, the injection engine has replaced the carburetor engine mainly due to its efficiency, as well as the reduced amount of harmful emissions into the atmosphere. This became possible as a result of flexible adjustment of the operation of the internal combustion engine using the electronic control system of the ECM.

Note that the indicated “check” lights up for various reasons. In this article we will talk about why the check light blinks, the engine stalls, or the power unit is unstable in different modes, and such operation is accompanied by a lit internal combustion engine fault indicator.

The engine stalls, the check light flashes or lights up: the main reasons

Let's start with the fact that injection engines are equipped with special catalyst devices for cleaning the exhaust. At the same time, the catalytic converter is a rather vulnerable and at the same time expensive element, and all sorts of malfunctions in the engine create a risk of damage.

As a rule, the check flashes when there is a risk of damage to the catalyst. In this case, the simultaneous tripping of the engine means that one or more cylinders are not working or are not working correctly. In practice, this means that the fuel in the problem cylinder does not burn completely, after which it enters the exhaust system.

As a result, the remaining unburnt fuel burns out in the area where the catalyst is located, since the temperatures there are very high. Fuel also gets on the catalyst itself, causing it to fail.

It should be added that the check also often lights up in the event of failure of any ECM sensors. One way or another, it is quite obvious that the “check” in the vast majority of cases indicates either problems with the electronic engine control system itself, or the risk of damage to the catalyst due to malfunctions of the internal combustion engine.

How to diagnose the ECM

As I already said, when errors like check engine appear, the Priora car owner has two options: solve it yourself or you can contact a car repair shop. The car owner can use a portable mobile device to read the fault codes from the electronic control unit that contributed to the appearance of the check on the Priora vehicle.

Similar article Markers for setting the ignition on the 405 ZMZ timing engine

It is necessary to correctly understand the cause of Check Engine on Priora and decipher it. Some error numbers can be found in the operating book for the “heart” of the vehicle. The rest can be found on the Internet.

For example, if the check engine light is on, this means that the following causes of engine malfunction have arisen:

broken track sensor;
adsorber is faulty;
The mass air flow detection device does not work.

Fault codes will tell you that one of the systems or components has failed and needs to be replaced.

Why does the “check” light up: the most common and common malfunctions

So, we figured out the general scheme. Now let's look at what problems lead to the check light coming on and the engine stalling. Often a p0300 error occurs, which indicates that a misfire (misfire) is occurring. There are several reasons for these omissions, and to determine them it is necessary to carry out a step-by-step diagnosis, taking into account certain individual symptoms.

You should start by checking the ignition system. The most common cause of tripping is the failure of spark plugs and armored wires. Candles can wear out their service life, break down, or become heavily contaminated. Armored wires suffer from insulation damage and breakdowns. One way or another, the result is either no spark at all, or there is a spark, but it’s weak.

If everything is in order with the spark plugs and wires, you should pay attention to the ignition module or ignition coils, which may be shorting. In this case, it is better to entrust the check to experienced specialists, since unprofessional actions lead to the fact that you can burn the switch or damage other important elements.

Having dealt with the ignition system, it is necessary to check the power system. As a rule, incorrect operation of injection nozzles or malfunctions in their operation lead to engine tripping. At the same time, the check will light up or flash.

The best option would be to check the injectors on a special stand. Such diagnostics allows you to determine the need to clean, repair or replace injectors. At the same time, specialists check the power supply to the injectors, the condition of the injector O-rings, etc.

As for compression, a burnt-out valve often leads to an unexpected decrease in the indicator. If the valve burns out, the engine starts to run rough. In this case, tripling is constant and occurs in all modes of engine operation. Engine thrust drops significantly, and significant excess fuel consumption is observed.

What to do if the engine starts to stall

8-valve injection engine VAZ 2114
In order to establish why the engine in the VAZ 2114 is misfiring, you must follow the recommendations of professionals. First of all, you need to determine which cylinder is out of order, for this you need to:

open the hood with the engine running;
remember the sound and nature of the operation of the power plant;
remove the high-voltage wires from the spark plugs one by one, if the sound and rhythm of operation changes, then continue further, as soon as it is discovered that when the spark plug is de-energized, the nature of the sound does not change, which means the faulty cylinder has been identified.

Next, you need to unscrew the spark plug and determine its condition and performance.

The next step is to determine the condition of the removed spark plug. If the electrode is intact and clean, and there is a large amount of soot on the head, then with a high degree of probability it can be determined that dust has entered the combustion chamber of the cylinder, therefore the fault must be looked for in the air supply system through the air filter.

If the entire head, along with the electrode, is covered in smoke, and it is severely burnt out, it means that a lean mixture was supplied and detonation combustion occurred with ignition advance. When the head is also completely covered with smoke and the electrode is in good condition, this means that a rich mixture was supplied and there was a delay in the ignition supply.

Assessing the condition of the spark plug gives direction in finding the true cause of cylinder failure. However, you should also check the performance of the candle itself. There is a proven method for this - “by spark”. If a spark breaks through, even if weak due to carbon deposits, then you must definitely look further. But if there is no spark at all, then you should replace the spark plug with a new one and check it. If there is a good spark, you can try to start the car and monitor the dynamics of changes.

Spark plug faults

If the car has a fairly high mileage, then trying to find the reason why the engine is shaking, you must do the following:

change the spark plug;
change the set of high-voltage wires; during prolonged operation under conditions of high temperatures and voltages, microcracks appear on the shell, leading to breakdowns and failure; experienced auto electricians recommend periodically changing this set for prevention;
measure the compression in the idle cylinder; if it is broken, then perhaps the rings are stuck or the valves are burnt out;
adjust the valves, this procedure should be carried out for prevention every 15 - 20 thousand kilometers;
determine the performance of the ignition coil, this is a fairly common failure, the best solution is to replace the old one with a new one;
change the air filter;
Check that the timing belt is installed correctly.

All the specified procedures have been completed, but the engine still “troubles”. We need to move on:

Conduct diagnostics of the electronic control unit and replace if necessary.
Check the fuel supply system, down to the injectors.
Determine the performance of the oxygen sensor, if it is faulty or produces deteriorated indicators - repair or replace.
The failure of the crankshaft position sensor is determined by the computer, and an error should be generated indicating a breakdown. If this happens, replace it.

What's the result?

As you can see, if the engine stalls and the check engine light blinks, it is necessary to determine the cause as quickly as possible. A timely call for service or repairs will allow you to avoid subsequent troubles with the catalyst and lambda.

It must be remembered that tripping and misfires do not always indicate a serious breakdown. In some cases, it is enough to replace the spark plugs or explosive wires, while in others the engine still needs to be repaired.

In this case, the spark on the candles will be normal, the injectors will also supply fuel, the compression measurement will not reveal any deviations from the norm, but the “check” in this case will still blink or blink.

The main signs by which you can determine problems with the DPKV crankshaft position sensor. Causes of failures, breakdowns, self-check.

When you sharply press the gas pedal, the engine jerks, jerks and dips appear, the car does not pick up speed: the main causes of the malfunction and diagnostics.

For what reasons may misfire of the fuel-air mixture occur in one or more cylinders? Fault diagnosis, recommendations.

Why does the check light light up on the dashboard? Is it possible to continue driving a car if the check engine light is on? What should you check first?

Why the engine may not pick up speed: gasoline engine, diesel unit, car with LPG. Fault diagnosis, useful tips.

The engine does not start after washing the engine: the main reasons why the power unit cannot be started. What can be done in such a case.

Source

Causes and troubleshooting when the check engine light comes on on a Priora

If the check light is on on a Priora, there are two ways to solve this problem. This means resetting the error codes and driving on as if nothing had happened. However, such negligence can lead to the engine soon failing. And the next time the check on the Priora is on, the VAZ will simply stop.

Attention! A reset is only done if the diagnostics find no problems. For example, wiring faults. The car owner resets the check engine and replaces the wires.

Another option is to find and treat the problem that has arisen. Incorrect operation of the valves can lead to the appearance of a check on the Priora. Since exhaust gas systems may not work properly. This will lead to frequent detonation of the engine and cause it to fail.

Triggering of the check lamp after washing the car

If the check light on a Priora comes on after washing, then the reason most likely lies in a shorted wiring. You should dry the Priora engine thoroughly and turn on the ignition again. If the problem does not go away, then try resetting the ECU error.

Stop the car and turn off the engine.
Open the hood.
Locate the fuse box under the hood.
Find the yellow group and remove F1.
Wait a minute.
Reinstall and close the hood.

Similar article Technical characteristics of engine 21128

Start the engine and see if the light goes out or not. If it doesn’t disappear, then it’s not the wash. Most likely there is a problem with the oxygen sensor.

Oxygen sensor

Many inexperienced car owners ask: “Why does Priora’s fuel consumption increase?” This is due to the oxygen sensor. This is often why the check engine lights up and indicates that the sensor is broken and needs to be replaced.

It can be detected by the vehicle's falling power. And the sensors break down due to the large amount of used oil that remains on the engine parts after several years of operation. The tightness is broken due to the deterioration of the plastic, since in domestic regions cold winters and hot summers destroy the plastic on the sensors.

A broken sensor sends signals to the ECU indicating a malfunction. The check light on the Priora comes on. It is necessary to check the condition of all sensors. There are only four of them. And replace the faulty one.

The device can be found in two places: 1. in the exhaust manifold, 2. after the catalyst.

Faulty spark plugs and more

The car makes sudden jolts when driving. The check engine light comes on in a Priora. This all indicates that the spark plugs are faulty. The spark is so delayed that the mixture is ignited at the wrong time. Therefore, only an experienced mechanic can figure this out. It is not recommended to climb into the engine yourself.

The engine starts to stall. The spark plugs are also faulty. They have a service life. Typically, spark plugs last no more than 50 thousand kilometers. After a similar amount of mileage, it is recommended to replace them.

If the check light was on on a Priora only for this reason, then after changing the spark plugs, the lamp will stop flashing or burning. If you change this equipment yourself, you will need a spark plug wrench.

Other

A leaky fuel system on a Priora 16 can also cause the check engine light to light up. To avoid this mistake, the car owner will need to check whether the fuel tank cap is tightly closed. If not, then unscrew and re-tighten the cap.

Similar article Check engine light on Lada Kalina

If it doesn’t help, it means that the rubber gasket is leaking. We remove the old one and install the new one.

Problem with the gas pump and fuel filter. They can also be the culprit for the check engine light being on. To correct this situation, change the filter device and the pump that pumps fuel.

Fuel with a low octane number in Russia is a leading problem among car owners. Bad fuel clogs injectors, destroys spark plugs and other components of the Priora engine. You just need to replace the fuel with a higher quality one, and all the problems with the engine check on the Priora will disappear.

Another problem if the check light on the Priora is low is the lubricant level. You need to add oil, and the light will go out on its own.

Why Lada Priora crashes when cold and what to do

Despite the fact that the Lada Priora 16 valves has many defects, this particular model is the most successful of the many varieties of VAZ. Among the most significant advantages are the following:

dynamism;
comfort;
moderate fuel consumption.

However, this model also brings some problems to its owners, for example, the engine is difficult to start or immediately stalls, and the smell of gasoline is clearly felt even inside the cabin. But the most common problem, according to car owners, is that the Priora stalls when cold, as a result of which the engine quickly overheats. That is, if a car owner starts his car, and the engine begins to work with so-called interruptions, while specific sounds are heard from the exhaust pipe and a strong smell spreads from gasoline that has not burned completely, these reasons will indicate that the engine is running cold. You can fix this type of breakdown yourself, but in order for the repair work to be done correctly, experts recommend fixing the breakdown step by step.

What is the danger of this defect?

Having discovered that the engine begins to stall, this defect must be eliminated as quickly as possible, despite the fact that signs of malfunction may disappear after re-gassing. The fact is that such a malfunction can reduce engine power, which will lead to an emergency on the road. After all, every car owner relies on the power of his engine, especially when overtaking, and since the power of the power unit will be reduced, the car simply will not have enough dynamics to complete overtaking, especially in severe frost and ice on the road. Only timely car repairs and finding out the cause of the breakdown will help to avoid a deplorable situation.

Every car owner can do this in his own garage with the simplest tools, if the work is done in stages.

Checking the spark plugs

According to experts, the main reason that leads to the engine starting to stall is spark plugs that have become unusable. Therefore, these elements need to be checked first, because quite often a simple replacement of spark plugs helps to completely eliminate the analyzed defect. To check the serviceability of the spark plugs, you need to do the following:

remove the terminal from the car battery;
disconnect and remove the high-voltage wires from the spark plugs;
Using a car wrench of the appropriate size, remove the spark plugs from the cylinders, strictly adhering to the order;
Each removed spark plug must be carefully inspected. If a malfunction or any other defect is discovered during inspection, the element must be replaced with a new one without fail.

If a new spark plug is installed in place of the old spark plug, be sure to adjust the element gap and check the spark plug for resistance. After all the components are installed in their original place, taking into account the sequence, it is recommended to start the Priora engine to understand whether replacing the spark plugs solved the problem. If the defect cannot be removed, you should check the integrity of the high-voltage wires.

Flashing indicator and engine tripping

When the check engine light flashes and the engine starts at the same time, it is necessary to inspect the elements of the ignition system:

spark plug;
wiring;
coil.

The tripling effect occurs when only three combustion chambers are firing instead of all four. The engine begins to stall when there is no injection of the air-fuel mixture into one cylinder.

Worn out and dirty spark plugs can also cause the Check Engine light to turn on. In order not to think for a long time about how to remove the check engine light, you just need to clean or completely replace the outdated spark plugs with a new set.

If the check is blinking and the engine is shaking, it is recommended to inspect and check the integrity of the high-voltage wiring, the quality of contact connections, refresh the insulation in places of breakdowns, and replace burnt wires leading to the glow plugs.

Testing the ignition coil comes down to measuring the resistance at the terminals and testing for the ability to create a blue spark.

What can cause the engine to run unstably?

Most often, the “check” can blink and the engine may run unstably when the fourth cylinder of the injector, which has 8 valves, fails. However, this formulation is incorrect, the reasons may be the following:

problems with the spark plug;
low compression in cylinders;
the valves have not been adjusted for a long time (they do not fit tightly);
the injectors are clogged or overfilled (they will have to be replaced);
spark plug wire breakdown;
ignition coil malfunction;
The crankshaft sensor is not working correctly;
the electronic control unit has failed;
the timing belt is misaligned (or it has completely fallen off);
Air filter contamination.

All these reasons lead to the failure of the cylinder and the appearance of characteristic signs of a malfunction.

In this case, problems can occur simultaneously or after a certain period. Pay special attention to the following signs:

increased engine vibration during operation - the operation of valves, rotating parts of the power plant and transmission is disrupted;
an increase in fuel consumption and a change in the nature of exhaust gases (they will contain unburned fuel);
reduction in engine power and reduction in vehicle maneuverability.

Remember that the consequences of neglecting the condition of the engine appear very quickly. If you continue to use a faulty car, you may very soon need an expensive overhaul of the power unit or its complete replacement.

Checking high voltage wires

Quite often the engine starts to stall, not only when cold, but also at speed due to failed high-voltage wires. It is recommended to check the serviceability and functionality of the wires in the following sequence:

the wires are disconnected from the spark plugs and ignition coil;
using a special tester, measurements of high-voltage wires are taken;
If the device indicates that one of the wires is faulty or if a violation of the integrity of the element is visually detected, it must be replaced.

Experts recommend replacing not just one wire, but using a complete set to ensure uninterrupted engine operation.

Checking the air filter

If the spark plugs and high-voltage wires appear to be in full working order, and the engine still runs, you should check the air filter. Sometimes this element may simply become clogged, as a result of which less air will flow into the engine, which will cause the analyzed breakdown. According to experts, there is no point in cleaning the air filter from contaminants, because the cost of a new element is quite acceptable, so it is better to simply replace the filter that has become unusable with a new one.

Most often, car owners, after carrying out the above measures, manage to get the engine working and, as you can see, carrying out repair work is quite simple and easy. But if difficulties arise during the work, you can watch a training video lesson on the Internet resource, which is taught by real masters of their craft.

Source