VAZ 2170 will not start, 16 valve injector, starter turns

January 15, 2015 Lada.Online 322 657 380

To start the engine, you need to ensure that a spark appears at a certain moment to ignite the air-fuel mixture in the cylinders. Problems with starting the engine occur if one or more elements of the system malfunction. The table lists possible reasons why the Priora does not start.

Fuel supply system

This is a fairly common reason. If the Priora car does not start, it is recommended to check the pressure in the fuel system using a pressure gauge. If it is not present when the ignition is turned on, then check the fuel pump and its relay, as well as the fuses.

The problem may also be a clogged fuel line or a clogged suction pipe in the tank. Also one of the popular reasons is the quality of the fuel. Gasoline often contains a lot of alcohol or water.

Among the reasons, it is worth highlighting the injectors. During their operation, the driver should hear a characteristic sound - clicking. If they are not there, then check the voltage and grounding. In this case, there may be problems with the computer or power system relay.

see also

• Priora pulls poorly reasons
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• Priora thermostat opening temperature
• Gadgets for Priora
• On the Priora the adsorber valve clicks
• Decoding Prior error codes
• VAZ Priora error codes
• Priora won't start with the key
• How much antifreeze does a Priora need?
• Priora painting of the center console
• Priora rear anti-roll bar

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Sources of the problem

Communities Lada Priora Lada Priora Club Blog what is affected by the clutch release switch The reasons why the Lada Priora does not start may be a malfunction in the fuel system:

• clogged fuel filters;
• failure of the fuel pump;
• lack of gasoline in the tank;
• clogged injectors;
• condensate freezing in the fuel line.

Having certain skills, every car enthusiast can fix these faults with his own hands. First you should check whether gasoline is supplied to the ramp with injectors. To do this, you need to disconnect the fuel hose from the rail and connect the pressure gauge. Then ask an assistant to start the engine. When the fuel pump is running, the pressure in the fuel line should be 2.7 atmospheres. If the pressure is lower than specified, you should look for the cause in the fuel filters.

A complete lack of pressure when a voltage of 12 V is applied means that the fuel pump has failed. To fix the problem, you need to replace the fine filter, wash or change the fuel pump filter, or replace its electric motor.

If the pressure in the fuel line is normal, the cause should be sought in the injector rail. You need to remove it from the engine, wash it with a special liquid and blow out all the holes with compressed air. To prevent condensate freezing from causing a lack of fuel supply, repair work should be carried out in a warm room.

List of possible malfunctions related to the operation of electrical equipment:

• Insufficient battery charge.
• Battery terminals are oxidized.
• The starter does not work.
• The traction relay is faulty.
• The timing belt is broken.
• Malfunction of the electronic control unit.
• The valve timing is disrupted.
• Severe contamination of high-voltage wires or lack of contact.
• Pulse transformers are faulty.
• The fuses responsible for the operation of the ignition system and starter have blown.
• Spark plugs are flooded or faulty.
• Burnt ignition switch terminals.
• The immobilizer is faulty.

Before you start looking for these problems, you need to make sure that the contacts and connections of all wires are reliable, that there is no oxidation, breaks or abrasions.

Solving the main problems

In order for the engine to start well when hot, you must follow certain instructions. The main task is to combine the mixture to start the engine. When starting a hot engine, you need to depress the gas pedal halfway. If you press the gas frequently, the situation may become more complicated.

In some cases, the Priora stalls while driving. Typically, this phenomenon is typical for summer weather, when the ambient temperature exceeds +25 degrees. The main reason is gas plugs in the fuel pump. They prevent the fuel pump from working normally. As a result, nothing remains in the float chamber, since no fuel enters it.

This problem can be solved by cooling the fuel pump. To do this, you will need to take a damp cloth and wrap it around the fuel pump. This method is relevant for Priora with an all-metal fuel pump. For models that use glass, this method is ineffective, since temperature changes will cause the glass to burst. If prolonged cooling does not help the hot engine start, then the problem is in the fuel pump.

If the Priora does not start well when hot

In this case see

second table, in addition to the reasons described, also pay attention to:

1. A pressure regulator that can discharge fuel through a membrane into the receiver.
2. DPKV contacts, if the sensor has been changed, check that the poles are connected correctly.
3. Faulty ignition module.

Let us remind you that in some cases the Priora does not start due to a faulty immobilizer or alarm system. In some cases, reflashing the engine ECU (electronic control unit) helps solve the problem of poor starting. And regular car maintenance will help eliminate problems of poor engine starting.

If it stalls while driving, what is it?

First of all, when the Priora suddenly stalls when the engine is running, check whether you have left the clutch pedal - perhaps you were accidentally distracted by something and did not notice how you removed your foot. But usually the car stalls when the gas pedal is released while driving. Symptoms of the problem are as follows:

• increased fuel consumption, air consumption;
• injection takes longer (the engine operating cycle is extended in time);
• The idle speed control operates with a delay;
• The voltage in the power supply fluctuates.

Hot

So, the car drove some distance. In the morning it started up with a half-turn, and forward. But then some distance was covered, a stop was made, the key was turned to “start” and... Several painful revolutions, and only then the engine started working. What's happened? As a rule, there can be many reasons. Conventionally, they can be divided into groups:

• The fuel system is acting up.
• Errors or breakdowns of sensors or actuators of the control system.
• Engine wear.

The first step is to check the presence of fuel in the injector frame. Gasoline supply is the most likely cause of problems. To do this, you need to open the hood and remove the decorative trim from the engine. The intake manifold runs between the engine and the Priora radiator. Below it is a fuel frame. At the end there is a special bypass valve, closed with a plastic cap. You need to unscrew it and press on the core. A strong release of fuel should occur.

When connecting this device, you need to turn on the ignition without trying to start it. The pressure must be at least 2.6. There is another option. Not so reliable, but quite usable. Perform the download several times before starting if the Priora is difficult to start. That is, without turning on the starter, wait until the fuel pump turns off, turn off the ignition and turn it on again without the starter. Do this several times. And then turn the engine. If starting improves, it means there was not enough pressure and you need to check the filters and fuel pump.

And another reason related to the fuel system is the banal clogging of the injectors, which gives the effect of poor starting to the same extent. But this is just a specialist checking the entire fuel frame at a special stand.

Electronic part of the check

Here it is worth clarifying immediately. There can be no talk of any complete determination of the cause of a poor startup without computer diagnostics. Although several positions can be checked. The easiest way is to check the performance of the Priora cylinders. To do this, you need to remove the decorative cover, start the engine and leave it at idle. Let it work a little and try to remove the connectors from the ignition modules one by one.

This requires good hearing and attentiveness. It is necessary to clearly determine which of the cylinders, when switched off, the operating rhythm changes the least.

Next, having determined the worst-performing “boiler”, perform the following actions:

1. Using a 10 mm wrench, unscrew the bolts securing the modules from the “bad” and any other cylinder.
2. Swap them and secure them.
3. Repeat the procedure with listening. If the signs of a “bad” start move to another “boiler,” then the ignition module is to blame. And replace it.
4. If no changes occur, then swap the spark plugs.
5. Repeat the procedure again. If there is no change, then either the injector or wear in the cylinder is to blame.

In addition, one of the main sensors that controls the launch of the Priora is the mass air flow sensor (MAF).

Crankshaft position sensor

This is the main device that gives the start signal. If it fails, the car simply will not start. But there is a small nuance. If the damper is dirty, or a lot of dirt has adhered to the sensor itself, a “bad start” effect may occur. But it's easy enough to check. This device is installed on the oil pump housing to the left of the timing pulley. If it starts poorly, just visually examine its condition and clean it if necessary.

Poor starting due to engine wear

This is quite a rare occurrence. In general, VAZ 2170 Priora engines are quite durable with proper care. But as they say, even an old woman can get screwed. In this case, engine wear is determined by dark exhaust from the pipe and increased oil consumption. Well, in general, here you need specialist advice. The motor must be inspected by a mechanic. And do a compression test.

Why does the engine stall when it is hot, and a well-warmed engine does not start?

1. The first possible reason is the carburetor. During movement, a large amount of air passes through it, due to which the carburetor is seriously cooled, at the same time the fuel that passes through it is also cooled. As a result, the carburetor temperature is several times lower than the engine temperature. Because of this feature, problems arise; after a long journey, you turn off the engine and make a short stop, at which time the carburetor begins to get very hot from the hot engine body. The remaining gasoline in the float chamber begins to evaporate from the high temperature, filling the voids - the air filter, the intake manifold and the carburetor itself. Air pockets form, and not a drop of fuel remains in the float chamber.

The solution to the problem is quite simple - press the gas pedal halfway several times and try to start the engine. This will make the mixture leaner and release excess evaporation. It should be noted that problems with hot starting can also be due to a similar problem, only due to the fault of the fuel pump or fuel line. This usually happens in hot weather when air pockets form from evaporation in the fuel system or pump, preventing fuel from entering the carburetor.

2. The second possible reason for the strange behavior of a warm engine is problems with the starter. Make sure that when you try to start the engine, the starter turns and does not just click or not respond at all. If this is the case and one of the above options is confirmed. the starter needs to be checked. If you are on the road, then the check can be reduced to a basic check of the starter power wire or other visual operations. If you get home, perform a detailed check of the starter according to these instructions. In case of malfunction, repair or replace it.

3. Alternatively, the reason when the engine does not start when hot may be a dead battery due to the reason described above, when the generator did not charge and the battery was completely dead.

Well, it seems like you didn’t miss anything!? That's all for today, we hope the article will help, tell you the cause of the breakdown and help you solve your problem. If you know other reasons, as well as ways to solve them, you can supplement the article using the comment form. Thank you for your attention.

Some tips

Did your car fail? Car owners complain that their car has difficulty starting when hot. If in the morning the vehicle can be started well, then after a short drive and turning off the engine, you will need to turn the starter while pressing the gas to start the engine. At the same time, it starts to smell like gasoline and stops for a few seconds.

Auto mechanics recommend solving this problem by replacing the following parts:

• spark plugs,
• fuel and air filters,
• installing a thick textolite gasket under the fuel pump,
• injectors,
• ignition module,
• water temperature sensor.

If the car has difficulty starting when cold, then the problem may be due to the use of low-quality gasoline. In this case, you must refuel only at trusted gas stations. Another reason why the Priora starts worse in cold weather is that the battery loses part of its capacity. The starter turns harder. The oil loses its viscosity and becomes thick. At low temperatures, it is recommended to fill in synthetics.

As a rule, to start the car, 1-2 rotations of the starter armature shaft are necessary. A vehicle in good condition will not have difficulty starting hot or cold. To do this, auto mechanics advise Lada Priora owners to adhere to the following recommendations:

Check all components of the ignition system If these recommendations do not help and the engine does not start, then you need to check the ignition system.

Working in winter - solving problems

Auto mechanics recommend that Priora owners start the car correctly in the cold season. When starting the car, you should not turn the starter for more than 20 seconds. Otherwise, the battery will quickly run out, but the Lada will not start. To warm up the car, you need to turn on the low beam for 1-2 minutes.

The presence of an injection engine does not require pressing the gas pedal when starting. For a manual transmission, you will need to depress the clutch pedal before starting. You cannot start the Lada with a push, as this can harm it.

If the car does not start, then you need to open the hood and check the serviceability of the spark plugs, and also see if the wires are attached to the battery. An extreme method of starting the engine is the use of an ether compound. It needs to be injected into the intake manifold. You can purchase this product at a specialized auto store.

Battery

As you know, when you turn the key, the starter is activated, which begins to rotate the crankshaft. If there is no reaction from this unit to the described action, they first go to the battery. It is well known that if the voltage drops to 10 volts or below, the starter, in principle, will not be able to work. However, it is worth understanding that low readings do not always indicate problems with the battery. Quite often this is caused by unsuccessful attempts to start the engine. To avoid battery drain, do not repeat them more than 2-3 times. The problem also occurs due to improper operation of the generator.

In any case, the battery will need to be fully charged. Only after this can you try to start again. In order not to waste time, it makes sense to replace the battery with a known good one.

You can also ask permission from someone you know to connect directly to their battery. If the problem is only in the battery, the engine will start without difficulty.

When this element is working properly, it produces a voltage within 14 volts, provided that the engine is idling and there is no load on the vehicle's electrical system.

In this case, the first start leads to an increase in voltage by 2 volts. Later, stabilization occurs to standard levels. They are also affected by:

• battery condition;
• load;
• air temperature.

Problems with the generator are very often the reason for the inability to start the engine. In cold weather, the voltage can fluctuate from minimum values ​​(12.9) to maximum values ​​of 14.8 volts.

The 16-valve Priora in such a situation needs to inspect its generator. It is easy to verify its functionality by connecting the power directly, bypassing the regulator. If it is possible to detect excess voltage, the latter relay needs to be replaced.

Engine starting problems

Many Priora car owners are faced with a situation where the starter turns, but the car does not start. Before finding out the reasons for the breakdown of this vehicle, it is recommended to find out the principle of operation of the starter. This device is presented in the form of an electric motor with a gear that meshes with the engine flywheel and rotates it when starting. On the housing there is a retractor relay, which is designed to control the gear travel and automatically start the electric motor.

When the ignition key is turned to the start position, power is supplied to the relay and is drawn in by an electromagnet, moving the gear and simultaneously closing the contacts. Thus, the electric motor starts. When the ignition key is released, power stops flowing to the relay magnet. The last element works in the opposite direction, opening the contacts. As a result, the electric starter stops working.

If the starter turns, the battery is in good condition, but the car does not start, then it is recommended:

• touch the wires that come from the power supply. If they heat up, check the contact between them and the battery.
• install the terminals in place,
• check the connection of the ground terminal to the body,
• turn the ignition key to the “start” position and measure the voltage at the connector using a tester,
• check whether power is supplied to the relay from the ignition switch by disconnecting the connector from the solenoid relay.

The spark plugs may be faulty.
Otherwise, you will need to remove the starter. To do this, disconnect the terminals from the battery and unscrew the air filter. After dismantling it, unscrew and remove the positive wire from the starter terminal. After disconnecting the connector from the relay, unscrew the nuts securing the last unit.

An important point in this issue is checking the operation of the relay. Using emergency wires for “lighting up”, the negative wire from the battery is connected to the electric starter housing. Positive – shorted to the relay connector. In this case, the last element should work, throwing the gear forward. Otherwise, the relay will need to be replaced.

Why the engine won't start

In order for the unit to start successfully, the following conditions must be met:

• normal crankshaft speed has been reached;
• appropriate compression;
• not bad battery charging;
• high quality fuel.

Thus, if the Priora’s engine does not start, you should suspect a problem with one of the points listed above.

First, understanding motorists inspect:

If the latter is fully operational, you should make sure that it rotates as usual. A problem occurs from time to time if the battery was recently changed, or other parts that allow for accounting (software) of the start-up.

The lack of voltage in the battery requires a check and a generator, since it must charge it. With all this, quite often over time, the contacts in the car’s electrical circuits oxidize, become dirty, or, in other words, simply become disconnected. We need to take this into account.

As practice shows, many reasons in most cases lie in the inability to start when cold.

Ignition

According to experts, ignition failures often occur in Prioria. The functionality of this system is relatively easy to verify. This is done by checking the presence of the spark plugs. If there is no spark, it is possible that:

• The ignition device is damaged;
• The crankshaft and distributor sensors are not working properly.

For a complete diagnosis, you should visit a car repair shop. Special devices are used here, with the help of which it is easy to determine which element has a problem.

If there is no spark at the spark plugs, we can say with a high degree of certainty that there is a malfunction:

• ignition device;
• his coils.

Priora does not start, but the starter turns: causes of control problems

The most common option is to discharge or reduce the charge on the battery. In this case, the remaining power is enough for the starter, but not enough to fully start the engine.

Checking the condition is quite simple: the driver needs to listen carefully to the sound from under the hood when starting the unit. A slight cracking sound will indicate that the battery is low and requires recharging or replacement.

Many parts involved in startup can corrode over time. As a result, contacts between them become weaker. The entry of humid air or moisture can affect the condition of many parts.

Therefore, if the Priora battery is normal and the gas tank is full, then you need to pay attention to the following elements:

2. Battery terminals.

3. Connections between the wires of the circuit.

4. Presence of condensation under the hood.

If corrosion is detected, the oxidized element should be cleaned or replaced. In the case of battery terminals, you additionally need to coat them with technical Vaseline. The position of the wires and their correct connection are also very important for the correct operation of the entire system.

If the wire comes loose or the connection order is incorrect, it is necessary to make the connection according to the correct diagram.

The ignition system can also be subject to breakdown, and its individual elements often fail. Checking the coil should be done using a tester.

The fuel pump fuse and relay can cause problems with fuel delivery. Therefore, when starting the unit, the driver may not hear any sound from the operating pump. The solution to the problem is to replace the damaged element.

The starter turns, but the car does not move - why?

Here you should look at the fuses. Probably all the problems come from them. It is necessary to check their integrity visually or check with an indicator screwdriver.

In addition, quite often the inability to start the engine is associated with:

• Low battery;
• failure of the switch that controls the ignition process;
• terminal oxidation;
• ignition coil damage.

The last breakdown requires replacing the winding with a new one.

Finally, the immobilizer may be preventing the engine from starting. This component is quite reliable and protects the car well from theft, but sometimes its electronics fail and block the ignition.

Why does the starter click and the engine does not start?

In this situation, most likely there is not enough voltage to make it start rotating. Sometimes such sounds indicate a breakdown of this unit. What apparently happened here:

• traction relay failure;
• broken wires;
• short circuit.

You need to find out whether the relay is receiving voltage and whether there is a contact in the ignition system. If there are no problems with the power supply, then the executing node itself has failed.

Connecting the starter directly allows you to make sure that it is the electromagnetic relay that is broken. It cannot be repaired, and therefore it will need to be replaced with a new one; fortunately, the cost of the element is low.

If the starter has recently been replaced, then perhaps the strength of the new one is simply not enough to rotate the crankshaft. In this situation it will work, but the engine will not start. At the same time, it drains the battery charge very quickly. This, in turn, will not allow the engine to start, even if it is possible to bring the revolutions to a minimum of 300.

The thing is that the injectors operate (as well as the ignition system) on electricity, but there simply isn’t enough of it.

Main reasons

First, check the serviceability of the battery
“I start the Priora, but the starter does not turn.” Not all car owners know how to solve this problem. There are several reasons for this condition. First you need to check the battery. If it is faulty or not charged, the starter will not turn. The contacts must be well tightened and oxidized. If there is a click when you turn on the ignition, then the wires are normal and power is available. The battery will need to be charged. If the lights go out when you turn on the ignition, then you need to charge the old power supply or install a new one.

The starter does not turn and there is no click - the main reasons for checking the performance of the battery on another car. If the car starts quickly, you will need to check the wiring on the first vehicle. Often the power supply is working, but the starter does not turn. In such a situation, the nickels in the solenoid relay are checked, as well as the generator brushes. If smoke is coming from the starter, then it will need to be replaced.

Due to a break in the ground wire connecting the body to the power unit, the car does not start. This is due to heating of the brake, clutch or gas cable. This happens when it is not put back in place after repair. If the starter turns, but the engine does not crank, then the ring in the gearbox of the first unit has burst and needs to be replaced.

Priora takes a long time to start when cold

Every morning there is such a problem as in the video

https://youtube.com/watch?v=HrA0cLgVQEk

I’m sure this is not normal, since everything is a bunch when it’s hot, and I tried starting it cold with friends out of curiosity. When I pulled out the spark plugs that were there, there was a light white coating. I took the car in for cleaning of the injector, throttle, etc., and it didn’t feel much better than in the video. (it was worse) I changed the spark plugs to Denso QP20, the situation has not changed. The speed does not fluctuate, the engine runs smoothly.

Or take it to the dealer? But it seems to me they will start to pile on))))

Greetings to everyone :) I solved the problem with the knocking, and largely thanks to you! Guys, we need to solve the 2nd issue - it doesn’t start well when cold. The car is a Priora 16 valves. After a night of sitting idle, you start it in the morning and it seems to catch on, then it immediately starts to cackle. And so on several times. then it started but stalled! Sales don’t triple, they double! Errors pop up 0300 0301 0304. It smells like gasoline. I changed the spark plugs en masse, 4 of them, but it didn't help. I swapped the coils - it didn't help. I bought a reel and installed it one by one, but it didn’t help. I went to the diagnostician - he looked and found nothing, he said come to me in advance and cool the car. The diagnostician says the ignition is clearly in phases, the fuel pressure is normal.

Comments 45

Today I installed a new IAC KZTA. Let the car cool down in the wind - I’ll go in the evening and we’ll see.

Once upon a time, a long time ago, there were problems with the Avtel ECU. As long as it's warm it starts without problems. But as soon as it gets cold, that’s it. People simply changed the ECU to something else and the problem went away. You can also try in the morning, when the car starts making horns, pull out the ECU, open it and heat the board from below with a miniature gas burner. Yes, you can even use a lighter. As a rule, this helped. By the way, what kind of ECU?

Bosch ECU. I don’t remember which one exactly

Write when you find the answer. And what did you find about the knocking?, but at -10 I had such nonsense in the morning. As it got warmer everything became fine, but Nati managed to figure out what was wrong. I think by winter we will start looking for an answer again.

I think the O-rings on the injectors are leaking air and the mixture becomes lean)

on the engineer nine, the coolant temperature sensor always showed that it was very cold, this made the mixture rich in the stench of gasoline, etc., it started very poorly, and then until it slammed into the muffler. Idk guys, but as an option.

I agree, it could very well be a temperature sensor, but this should have come up during diagnostics. Maybe the specialist is not entirely competent?

My check never showed, but according to the parameters it worked but gave the wrong readings, sometimes on the on-board vehicle it just showed 0 intermittently

No friend will do this, you have more questions than solutions. You also need to make some kind of contribution to the community, otherwise interest in your person will quickly disappear) You worked on your head for half a month, intrigued everyone, and now (I solved the problem with the knock) and that’s it? For general development, you can tell us, maybe with a photo for clarity, what was knocking, how it was eliminated, so that in the future we will know the reason causing such a specific sound.

Any car has a very complex device and one small failure is enough for problems to start. For example, many car owners may notice that over time the engine of their Lada Priora starts worse, stalls, or stalls. The situation becomes especially complicated if the car cannot start when cold, because in this case any attempt to use the car will turn into a real test of nerves.

Nothing ever happens to a car for nothing. If you notice that your Priora does not want to work, then there are objective reasons for this. Your task in this case is to find the problem and fix it. Typical malfunctions in which the Lada Priora starts poorly or does not start at all when cold are completely remediable in a garage (with the exception of engine failure). They are similar for engines 1.5 and 1.6, with 8 and 16 valves. Today we’ll talk about why a car may have difficulty starting when cold, when hot, or stall immediately after activating the engine.

Determining the circumstances of a “bad” engine start

Every more or less experienced driver of this type of malfunction, when the engine does not start, gives an initial assessment, finding out under what circumstances the Lada Priora does not start. So, there are 3 circumstances when the launch is poor.

1. It is impossible to start the engine when it is hot.
2. Doesn't start well when cold.
3. The engine does not start well in any condition.

Each of the above circumstances has its own nuances and reasons, but they are all united by one single symptom - the car does not start well.

In the first case, Priora does not start immediately, as expected, but after a series of full turns of the crankshaft by the starter, then if when the power unit has already reached a temperature exceeding the 90-degree mark, in other words, when the engine is warmed up, and a bad start occurs after mileage

If the car stalls and stalls when cold, as option 2 tells us, it happens when the car doesn’t start well with a cooled engine, it’s probably the first start in the morning, or the car has been standing for a long time; this also happens in harsh winters.

3rd option, when your Lada Priora refuses to start the first time in any conditions. It doesn't matter whether the engine is cold or hot. We invite you to further consider some of the possibilities that every car owner has in order to solve this problem with his own hands.

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Priora won't start, starter turns

Reasons why the Priora 16 valve engine is tripping. Nothing new

It is useful for any fan of the domestic automobile industry to know the reasons why the Priora engine has 16 valves. After all, this problem is quite common. Ask any driver what the reason is, he will immediately give several options for the malfunction. And also ways to solve them. Of course, by interviewing many people you can find out all the reasons. But they still need to be checked. In addition, very often the cause of engine tripping can be several conditions at once. To ensure that the problem is resolved, you need to check all possible options. Only in this case will you get rid of this problem. Causes and consequences The reasons why the Priora 16-valve engine triples can be very diverse. Several systems are involved in the normal operation of the engine. Therefore, to identify the source of the problem, it is necessary to check the following systems:

• Supply system;
• Ignition;
• Sensors

Very often, it is on Priors with a 16-valve engine that the problem arises due to power problems. Therefore, you need to check it first. The consequences of engine tripping can be the most unpleasant. Outwardly, this manifests itself as hassle. After all, the engine is unstable and shaking. Often the interior begins to smell of gasoline. Don't forget the money issue. The car noticeably increases its appetite and you have to visit the gas station much more often. It’s much worse that this leads to more serious damage. First, the fuel settles on the cylinder walls and seeps into the block, mixing with the oil there. Due to this, the lubrication of the unit deteriorates, and parts wear out faster. It is also possible for a water hammer to form if a sufficient amount of fuel accumulates in the cylinder. In the simplest case, the remaining working cylinders bear a large load. As a result, their elements fail earlier. In any case, it is necessary to resolve this problem in a timely manner. Before starting a more specific troubleshooting, conduct diagnostics using a laptop. This will help you determine which cylinder is not firing. Typically, such errors are recorded in the memory of the engine control unit. Having determined where the flash miss occurs, start working. Power A flash miss can occur due to the fact that there is simply nothing there to burn, that is, to flash. So first, start the engine. When it has been running for a couple of minutes, turn it off and remove the spark plug. If it turns out to be dry, then the reason is the lack of fuel. There may be several reasons for this situation:

• The most common cause of 16 valves on a Priora is damage to the injector winding. You can check this by removing the cover and manifold. Then measure the resistance on the injector winding; it should be within 15-15 Ohms. If it is faulty, it should be replaced. Read more about how to do this in the article “How to check an injector nozzle”;
• Another reason is a clogged injector. This usually happens when using low-quality fuel. You can also “clog” these engine elements yourself by pouring various cleaners into the tank. They partially destroy sediments. Which, in the form of a suspension, enter the injector, where they get stuck in the nozzles. To fix the problem, you need to flush the injectors. You can do this yourself without removing them from the engine.

These are the main reasons for engine tripping due to power problems. It should be noted that winding damage is the most common malfunction on such engines. Ignition But it may turn out that when you unscrew the spark plug, you will see that it is wet. This indicates there is no spark. As a result, fuel combustion does not occur. The ignition is checked in the following order:

• First, let's visually evaluate the candle. It should be brown-sand color. If it is darker, then it may be faulty. It is advisable to check it on a special stand. The spark should be blue and white. If it is yellow or red, then this is a bad sign. You can, of course, try to clean it with sandpaper, but this may not bring the desired effect;
• Try using another spark plug and check how the engine runs. If everything returns to normal, then the cause has been found. Also check the high voltage wire;
• After this, check the ignition coil. It is the weakest ignition part in the Priora. To check, we reset errors from the ECU. And with the ignition off, they swap the supposedly non-working ignition coil with the obviously working one. The engine starts for a couple of minutes. The diagnosis is repeated. If the flash miss “migrated” along with the coil, the problem is in it. Replace it with a new one.

Sensors
Engine friction can be caused by 2 sensors. One of them is the idle speed sensor. If he makes a mistake, the engine will stall when cold. After warming up everything returns to normal. The problem may also be caused by the crankshaft position sensor. Usually the problem with it is visible during diagnosis. Conclusion. There are many engine-related malfunctions. At the same time, even seemingly harmless ones can cause a bunch of other problems. Therefore, it is important to know all the reasons why the Priora 16-valve engine triples. This will help you quickly eliminate the problem, which significantly reduces engine life. It also brings closer the need for major repairs. AutoFlit.ru

How to fix problems after washing

For each situation there is a solution. If the driver used the services of a car wash, then you need to check whether water got inside the car

It is especially important to do this if the motorist has washed the engine and the car does not start. When carrying out a regular washing of the surface of the car, it is necessary to open the hood at the end of the work and check for the presence of water near the engine and other important elements

The battery, terminals, spark plugs and all wiring must be thoroughly wiped down so that moisture does not increase the amount of current drawn or drain the battery. If visiting the car wash was a fairly frequent procedure, then you need to check for gray deposits on the battery terminals. It prevents normal contact and, as a result, normal operation of the battery.

It is best to wipe the area under the hood with a soft cloth or sponge, as they absorb water best. The sponge allows you to remove moisture even in the most difficult to reach places. After wiping off the water, the car should start normally.

If the car does not start after washing the engine, this will require a more thorough inspection. First you need to inspect the spark plugs, since wet spark plugs do not produce a spark. Water under the distributor cap will also prevent the car from starting. It will need to be unscrewed and wiped completely.

Water can also accumulate in the spark plug wells, so it is better to blow them out. All wires must be inspected and, if necessary, thoroughly wiped to prevent short circuits. All this must be done before starting the engine for the first time after washing. Then you can prevent a number of problems and prevent serious breakdowns.

There are situations when, after water gets in, the car’s electronics behave strangely. This manifests itself in the fact that the car does not start when the driver has washed the engine, and the immobilizer is on. An immobilizer is an anti-theft device that, using a special program, can stop connecting electrical circuits in the most important areas.

You can avoid a flooded engine when you do not use a high-pressure car wash. It is these devices that drive water inside the motor, which prevents its normal operation. It is best to wash the engine by hand, the old-fashioned way, and clean hard-to-reach areas with a brush. This will take more time, but will not cause problems with starting the car.

Common reasons why the idle stalls:

1. The most common one is the idle speed regulator (sensor), which is directly related to engine idle speed. It’s quite easy to check whether there is a breakdown. If the car does not start when you turn the starter, operate the gas pedal, the engine should start. If the revs start to fluctuate immediately after you take your foot off the pedal, there is a 99% chance that the reason is in the idle speed control. The solution is to replace the idle air control; this will take VAZ owners a minimum of time.

2. The second probable reason why the engine stalls at idle is problems with the throttle valve. This problem can be cured by simply cleaning the throttle valve.

3. If after cleaning the problem persists, we assume that the reason why the engine stalls at idle may be the TPS (throttle position sensor). The problem is solved by replacing the TPS; the procedure is not complicated and can actually be done with your own hands.

There are often cases when the engine stalls while driving, as they say, out of the blue. The most probable and most common reasons why this may happen will be listed below.

Priora won't start, starter turns

Reasons why the car does not start from autostart. List and fixes

Many drivers are interested in the reasons why the car does not start from autostart.
All car owners face this sooner or later. Some problems can be solved quite simply. But there are also serious breakdowns. They can only be eliminated by service. Remember, it is easier to prevent a problem than to solve it on the road. Before leaving, it is better to check the filters, spark plugs, and battery charge. Problems with autostart can be a sign of serious problems with the car. You need to know all the main reasons. Summer or winter The reasons why the car does not start from autostart are mostly related to storing the car outside. In summer, such problems practically do not arise. But in winter, failure is not a rare occurrence. If the temperature drops sharply by more than 15°C, the autostart will almost certainly fail. Also in winter, there is a high probability of the battery draining. In this case, the car will not start. And not only from the button, but also from the key. (for this it is better to use a thermal case for the battery). The starter works, but the engine does not start. Most likely, the problem is a sudden cold snap. As a result, condensation forms on the contacts of the ignition system, which in turn prevents a spark from occurring. On diesel engines, the reason may be poor quality fuel. In the cold, diesel fuel tends to thicken. Article on the topic “Starter does not turn, just clicks.” Power problems If there are problems with the car’s power supply, the symptoms will be the same as in the first case. But there could be a lot of reasons for this. Perhaps the fuel simply does not reach the injector. The check should begin with the pipeline, pump, and also inspect the fine filter. A blockage in any of these parts makes fuel flow simply impossible. And, accordingly, the engine starts. If everything is in order here, you need to check the operation of the injector. Most likely, this is the reason. To correct the situation, you can spray a special cleaner into it. Then try to start the engine. Often, such tactics can help out. General signs of such a problem are as follows. The starter turns, but the engine does not start. In simpler cases, it may start and stall immediately. Injection pump. This name brings awe to diesel owners. This centrifugal pump allows fuel to be supplied to the cylinders at the pressure necessary to initiate ignition. The problem of pump failure is revealed by the complete inability to start the engine. It will not be possible to repair the car in the field; replacement of the injection pump is carried out only by qualified specialists. Poor-quality mixture Another reason for autostart failure is the poor-quality mixture supplied to the cylinders. With such a malfunction, the car starts, but the engine runs unstably and immediately stops. This is perhaps one of the simplest faults. Most often the cause is a clogged air filter. In this case, air simply does not enter the combustion chamber. And since it is not there, the engine simply does not start. If some of the air does get in, the car starts, but immediately stalls. Rarely, the throttle valve becomes dirty. In this case, it jams and the fuel mixture does not enter the engine. Therefore, if the engine fails to start, it is necessary to visually assess the condition of the throttle. If there are traces of dirt on it, or it does not move, then this may be the reason. If there are problems with the idle air valve, the car will refuse to start. There's not much to do here. The sensor and valve can only be replaced by a service center. In addition to the refusal to start, a sign of a breakdown is an illuminated engine malfunction check. Alarm system As a rule, the autostart system is an integral part of the alarm system. Therefore, any malfunctions with the signaling lead either to a complete failure of the autostart or to its unstable operation. The most common malfunction is a short circuit of the external circuit. All drivers who store cars in open parking lots face this problem. With constant temperature changes, condensation constantly collects on the contacts. Over time, a short circuit occurs. With such a malfunction, the doors will not open from the remote control. Or they will open and then close on their own. When you try to start the car, it will not respond or will close the doors instead of starting. In more rare cases, the alarm control unit may fail. In this case, the alarm stops working completely. When I try to start the car using autostart, nothing happens. At best, you will have to change the fuses. In the worst case, a breakdown threatens to completely replace the alarm system. Engine. The engine may also start unstably if there is poor compression. In this case, it starts, but reluctantly. There will be a decrease in power when driving. The car may jerk. The problem often occurs on old engines that have exhausted their service life. Increased wear can also occur if the motor is used incorrectly. You can determine the problem in any service. Article on the topic “How to check compression in an engine.” Conclusion. Unfortunately, problems with starting the engine occur to every driver. Knowing the main reasons why the car does not start from autostart, you can quickly find a way to eliminate the problem. Also, such knowledge gives greater confidence on the road. AutoFlit.ru