Poor starting when cold Priora 16 valves causes

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.

Main types of “bad” launch

Typically, experienced drivers immediately assess the malfunction in the following way: “Poor hot start.” That is, it is clear that there are 3 types of bad startup:

1. Poor cold starting.
2. It starts poorly when the engine is hot.
3. Doesn't start well in any condition.

This means that these three types have their own characteristics, although they are united by one sign - the car is difficult to start. But in the first case, this only happens when the car has cooled down. Either this is the first start in the morning, or the Priora has been sitting long enough for the engine to cool down completely, or it is a harsh winter.

In the second case, the Priora does not start immediately, but only after several full turns of the crankshaft with the starter only when the engine temperature is above 90 degrees. That is, a fully warmed up engine. Usually after some mileage.

Well, the third option is when Priora is capricious in any conditions. Be it in the morning, at lunch or in the evening, on a cold or hot engine. Here we will consider the minimum possibilities that the owner has to solve this problem on his own.

Causes of management problems

Lada Priora Sedan Logbook Victory over Lambda probe

The Priora most often does not start because the battery drains quickly or is completely discharged. In this case, the amount of charge is not enough to operate the engine.

Diagnosis of the starter is easy

To understand what condition it is in, you need to pay attention to the sound coming from under the hood. A cracking sound will indicate a discharged battery.

Charge the battery. Any parts of the car may be subject to corrosion, which will subsequently weaken the contact between them.

Humid air also affects parts, and if your Priora has a full gas tank and the battery is charged, pay attention to the following:

• starter;
• battery terminals;
• connections between the wires of the circuit;
• presence of condensation.

In case of corrosion, clean or replace the oxidized element. The terminals also need to be coated with special technical Vaseline.

For the system to work, pay attention to the position and contacts between the wires. If at least one is disconnected, connect according to a special diagram

Use a tester to check the condition of the coil. Check the fuel pump relay and fuse. It may be damaged and interfere with the fuel supply.

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.

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.

In the cold

Morning, key to start. The starter cranks the engine, but the Priora does not start right away. Where to start? In general, most of the reasons are the same as for a bad hot start. The only difference between the second option is that here, failure in the electronic part is more common. That is, the sensors and actuators of the Priora are acting up. By the way, launching Priora in cold weather is a separate topic. Although cars with distributed injection themselves tolerate frost much better than carburetor cars. While with a “hot start”, more often the problem is in the fuel system. At the same time, if the Priora does not start well in any condition, then most often it is engine wear.

But we definitely need to remind you that the most reliable testing method for Priora is computer diagnostics. The methods described here, of course, will help an experienced driver find and fix a minor breakdown, but only diagnostics will reveal a specific malfunction.

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Why Lada Priora won't start - reasons

There are two cases when the car does not start at all - if the starter works or if it does not work. Both cases are negative, but the difference is that the signs of trouble to listen for and look for are slightly different. If the Priora starter does not turn, it is recommended to check the following points:

• The battery may be discharged. Charge it or, if you're short on time, borrow a working battery from a friend to test your guess.
• The battery terminals are oxidized or the wire terminals are oxidized. Check, ring the contacts, and then lubricate them with technical Vaseline. Finally, check the tightness of the terminals and, if necessary, tighten them.
• The engine or other components of the machine are jammed. The culprit may be the crankshaft, generator pulley or pump. We'll have to check all this.
• The starter is broken, the inside of it is damaged or worn out: the drive gear, the teeth of the flywheel ring. In order to determine the malfunction, you will have to dismantle and then disassemble it - only inspection of the parts can confirm the hypothesis. You don't always need to change the starter - just install a new part inside.
• Problems with the starter circuit. You will have to carry out diagnostics first while driving, and then look at it manually. Most often, the culprits are oxidized or loose wires, relays, or ignition switch.
• Starter traction relay malfunction. The diagnostic mechanism is no different from the previous version: turn the key to the second position, there should be clicks. The relay clicks and this is normal starter operation.
• Poor contact with the “minus”, the wires or contacts of the traction relay are oxidized. A click will be heard, but the starter will not turn. You need to ring the entire system, and then clean it at the connections, tighten the terminals.
• Short circuit or break in the holding winding of the traction relay. If this is the case, you will have to replace the starter traction relay. Instead of a click, a cracking sound will be heard when you turn the key, and the relay itself needs to be checked with an ohmmeter or touched, assessing the degree of heating.
• The problem is inside: the armature winding, the commutator, the starter brushes are worn out. You need to dismantle the starter and carry out diagnostics from the battery, and then with a multimeter. The freewheel is running slowly. The armature will rotate, but the flywheel will remain in place.

Also, the VAZ-2170 may not crank the starter - when you can’t hear anything at all when you turn the key in the ignition switch. This case is associated with the following problems:

• The gas has run out or the battery is low. It’s trivial that the starter has nowhere to get energy to start. If the battery is discharged, you will hear a cracking noise when you try to start the engine. And the fuel pump cannot pump up fuel to release it inside the chamber. On the dashboard, the fuel gauge needle will be at zero.
• Oxidation of the wires or battery terminals or connections are not just tight enough. You need to clean the contacts and then check how tightly the connections fit together.
• Mechanical damage to the crankshaft (when scuffs, cracks, chips appear on bearing shells, shafts, engine oil freezes or the generator or anti-freeze pump jams). First, you should change the engine oil and check the shafts for damage, then change the generator and pump.
• No spark is produced. A coil and spark plugs work to create a spark. It is necessary to check these elements, diagnosing their operation, and then replace the faulty parts.
• Incorrect connection of high-voltage wires. You will have to look at all the connections, correct or correct what is already installed incorrectly.
• The timing belt has broken (or worn out when the teeth on the belt have worn down). The only solution is to replace the belt.
• Error in valve timing order. Inspect the crankshaft and camshaft pulleys and then adjust their position.
• Error in the "computer". First check the electrical access to the ECU and sensors. If everything is connected correctly, you will have to replace the control unit.
• The idle speed control is unstable. This can be corrected by replacing the corresponding sensor. Check fuses and relays under the steering column.
• Fuel system contamination. Checking the filter, pump, line and outlet from the tank.
• Wear of the fuel pump and, as a result, insufficient pressure inside the system.
• The injectors are worn out. Their windings need to be tested with an ohmometer and the circuit generally checked.
• Air flow to the engine is difficult. Assess the condition of the hoses, clamps and air filter.

Priora, bad morning start. (solved)

Priora, bad morning start. (solved)

nail1960 » 02 Aug 2014, 22:14 | Message: #1

Re: A373DA02 M73 21126-1411020-11 21126 E-3

sergeyelektri » 03 Aug 2014, 00:33 | Message: #2

Re: A373DA02 M73 21126-1411020-11 21126 E-3

nail1960 » 03 Aug 2014, 01:10 | Message: #3

Re: A373DA02 M73 21126-1411020-11 21126 E-3

jazz » 03 Aug 2014, 05:44 | Message: #4

Re: A373DA02 M73 21126-1411020-11 21126 E-3

Mikhail58 » 03 Aug 2014, 09:59 | Message: #5

Re: Priora, bad morning start.

nail1960 » 03 Aug 2014, 11:47 | Message: #6

Re: Priora, bad morning start.

kisel65 » Aug 03, 2014 12:25 pm | Message: #7

Re: Priora, bad morning start.

nail1960 » 03 Aug 2014, 13:02 | Message: #8

Re: Priora, bad morning start.

Serg57i » 03 Aug 2014, 16:02 | Message: #9

Nail, hello. I read this phrase and was reminded of my favorite movie “National Security Agent”. There, too, the syncopation in the bass in the third bar was delayed. Joke. No offense. As a matter of fact, I am also inclined to incontinence of the injectors. There was a similar case with ten, but they didn’t let me finish the job. I’m just aware of the result that others achieved. After all, they urgently and immediately need to issue a decision and don’t care about the specifics of the creative process. One of my former bosses, who was especially impatient, told me as an engineer: “Think fast!”

Main reasons

It is very difficult to immediately find out why the engine refuses to start when it is cold. There can be two options here - either there is no spark, or there is no fuel. But if you look deeper, you can identify other problems. Let's look at the most basic reasons for cold starting of the Lada Priora engine.

Experts identify the following problems. These are low quality fuel, clogged injectors, clogged fine fuel filter, malfunction of the fuel pump, incorrect pressure adjustment in the fuel rail, clogged air filter, dirty throttle valve, clogged idle valve and low ambient temperatures during engine starting. Also, the Priora has difficulty starting when cold due to faults with the mass air flow sensor and temperature sensor.

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.

Low quality fuel

At domestic gas stations, low-quality fuel is by no means uncommon. But even at branded gas stations you can buy low quality gasoline. As a result, the car will be difficult to start. The car will leave the gas station on the remaining old gasoline, and the engine will be warmed up. But after being idle, it will be quite difficult to start the car. There are several types of low-quality gasoline.

Fuel may be dirty: it may contain various deposits. They clog the fuel channels as well as the filters. As a result, the pressure in the fuel rail will be insufficient, and it will be very difficult to start the engine.

Gasoline can also be low octane. Most often, with such fuel, the car may not start when cold even the third time. You will hear the noise the engine is making, you will feel weak thrust, and detonation will occur. Experts do not recommend starting a car on this fuel.

To eliminate the cause, it is enough to drain the bad fuel and then flush the fuel system. Then you need to fill the tank with good gasoline.

Troubleshooting Starter Problems

The starter is an important element of the engine starting system. Its task is to ensure vigorous rotation of the crankshaft, which transmits translational motion to the piston group, creating the necessary degree of compression in the combustion chamber and removing exhaust gases.

Basic starter malfunctions:

• short circuit in the traction relay winding;
• oxidation of wire tips;
• bendix jammed;
• break or short circuit in the starter winding;
• worn or damaged starter brushes.

First, you should conduct an external inspection of the Priora starter fuse: check the condition of the contacts, clean the oxidized terminals. It is necessary to evaluate the reliability of the ground connection with the engine and body. Then you need to try to start the car again. If the Lada Priora starter traction relay clicks, but it does not spin, the breakdown needs to be repaired.

If the device fails in the field, when it is not possible to contact a service station, you can jump start the car. For this you will need an assistant. Having accelerated the car with the ignition on, you need to quickly engage second gear and release the clutch: the car starts to twitch, but after two or three jerks it starts. This is the most popular method of starting the engine when the battery is dead or the starter is faulty, but it can only be used on vehicles with a manual transmission.

Fuel pump

This is one of the popular reasons why Priora has difficulty starting when cold. This is due to a malfunction in the fuel pump. You can even hear the sound of the node operating. But if the pump is faulty, the fuel system will not have the pressure necessary for normal operation. There is no pressure in the fuel rail, which means that starting will be poor, or the engine will not start at all.

The fuel pump can only be checked using your ears. You need to turn on the ignition of the Lada Priora. At the same time, if the fuel pump is working, a characteristic buzzing sound will be heard from the side of the tank. It will only last a few seconds. When a sufficient amount of gasoline is pumped into the ramp and the pressure becomes normal, then the pump will turn off. If there is no buzzing sound after turning on the ignition, it is recommended to replace the fuel pump.

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

Here you need to inspect the fuses.
Perhaps all the problems come from them. They must be checked for integrity visually or tested with an indicator screwdriver. In addition, often the inability to start the engine is associated with:

• battery discharge;
• breakdown of the switch that regulates the ignition process;
• terminal oxidation;
• failure of the ignition system coil.

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

And finally, the immobilizer may not allow you to turn on the engine. This element is quite reliable and protects the car well from theft, but sometimes its electronic components malfunction and block the ignition.

Throttle valve

A dirty throttle body could very well be the cause. The Priora has difficulty starting when cold due to the supply of not clean air through the damper, but with various deposits. All this can prevent the preparation of a normal mixture in the correct proportions.

Sometimes the throttle valve can even get stuck due to the huge amount of deposits on it. To solve the problem, experts recommend cleaning the throttle - you can do this yourself using an injector cleaning spray.

Checking the exhaust system

It may be that your beloved Priora does not start due to a poor air-fuel mixture. The engine may stall if the exhaust gases are not removed but mixed with oxygen. In this case, there are only two reasons for the malfunction:

1. Malfunction of the muffler catalyst. This may be due to debris and dirt in it, and in frosty conditions the liquid contained in it can freeze.
2. The muffler itself sometimes freezes up due to the liquid in it, or it simply becomes clogged with debris.

Ignition system

This is another fairly common option and the reason why the Priora has difficulty starting when cold. Almost regularly, due to sudden and constant temperature changes, various microcracks form in the ignition coils. When the coil heats up, it tends to expand. If there are cracks between the walls of the coil, then there is no hot breakdown, since the gap in the crack will be minimal. When it is cold, the microcrack will be larger and as a result there will be a breakdown. There will be no spark on the spark plug. There is no ignition of the mixture, the car does not start well.

The problem exists not only with the ignition coils, but with any other components that operate in the Priora ignition system. This could be a distributor, wires, spark plugs. In this case, there is nothing better than replacing the coil and other elements.

Battery

As we know, when you turn the key, the starter

, which begins
to rotate
the crankshaft. If this unit does not respond to the described action, they immediately climb to the battery. It is well known that if the voltage drops to 10 volts or below, the starter, by and large, will not be able to work. But it is worth realizing that low performance does not necessarily indicate battery dilemmas. Quite often, unsuccessful attempts to start the engine lead to this. To avoid battery drain, you should not repeat them more than 2-3 times. The problem also appears due to improper operation of the generator.

As a result, the battery will need to be fully charged. Only then can you try to start again. In order not to waste time, it is best to replace the battery with a previously serviceable one.

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

Low battery charge

If the Priora has an old battery installed, then in cold weather it discharges faster. This means that starting a cold engine in the morning can be problematic. Sometimes even a new battery drains quickly. In this case, you should look for current leaks. It may be in the wiring or the leak is occurring in some device.

If the search for current leakage does not produce results, then it is recommended to check how the generator charges the battery. If the charge is insufficient, then the battery will not charge fully. As a result, the starter will turn much harder than if the engine was cold.

The starter turns normally, but the Priora does not start - the simplest reasons

At the first stage, they always look to see if the gas tank is empty.
This option is the most obvious and is where you should start. When there is fuel, pay attention to the battery. Most likely, the culprit is too little output voltage. In such a situation, the starter will turn normally, but the remaining power is no longer enough to make the power plant work. Of course, the car won't start here. A simple way to confirm the hypothesis mentioned above:

If there is a faint crackling sound, then it is definitely the battery. Put it on charge or try starting it using a cigarette from another car. In the latter case, the battery power will be partially restored from the generator already on the road.

The problem may occur due to oxidation of the contacts. In this situation, the contact resistance increases and even a fully charged battery will not be able to overcome it. It makes sense here:

This malfunction can be eliminated by cleaning the terminals with fine sandpaper and then lubricating them with Litol.

Loosening of the wires must also be avoided - tighten all the nuts and make sure that the connectors on the devices involved in starting the engine are not loose.

If you did some kind of car repair the day before, then additionally check whether all the wires are connected correctly. And when the car does not start, then perhaps the fuse or relay responsible for the operation of the gasoline pump is to blame. The burnout of one of these elements, or even their unreliable fastening, will not allow the pump to start. As a result, fuel will not be able to enter the cylinders, and the engine will remain indifferent to your attempts to wake it up.

The mentioned elements of the Priora are located in the mounting block located in the cabin, near the left foot of the front passenger. The decorative cover is held in place by several screws. The fuse itself is designated F3, and the relay is designated K2.

Idle speed sensor

This is also a common problem when the Priora 16 valves have difficulty starting when cold. This sensor is an electromagnet and a rod. When the car is cold, the temperature sensor reports this to the control unit and it sends a signal to the sensor responsible for idling. The engine speed will be increased until it warms up. The sensor rod extends and the throttle opens slightly. When the engine warms up, the ECU reports this to the sensor. The rod slowly moves back.

If there is a malfunction with the idle speed sensor, the rod does not extend, and accordingly, the throttle does not open slightly or does not open completely. The sensor may be dirty, or the coil located inside the IAC may fail.

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

Compression

If the 16-valve Priora has difficulty starting when cold, and all the options described above are not suitable, then it is worth checking the compression. In this case, with low compression, starting a cold engine can be very difficult.

When engine parts are warm enough, they expand. Even a slight expansion will be enough for the compression to rise and the engine to start. If the engine is cold, there is no expansion. Therefore, starting will be difficult.

FakeHeader

Comments 61

wash the throttle body!

found the reason? same problem

no, I haven’t found it, I want to find a real IAC, not a fake one, but I can’t find it yet

I found the reason, look in the blog tomorrow, maybe it’s the same for you

it's good if I found it, I'll definitely read it, I hope it's the same for me

In short, I realized one thing in car services they screw up, it’s better to look for those who do diagnostics at home themselves, but in general someone in our city should know good diagnosticians; you can count them on the fingers of one hand, I think in your city you should also ask your friends

check the pressure on the ramp, if the current with gas starts up, then the rcx is to blame, because it is he who sets the starting gap bypassing the damper. Rhx is the nose, and the throttle is the mouth, close both and there will be nothing to breathe)). Well, look at the dpkv again, maybe the wiring has come loose

Oil

Many car owners try to change their oil before winter. But not everyone knows that the oil with the lowest viscosity is best suited for winter. Thick oil will simply harden in winter. In addition, when the engine is cold, it is very difficult for it to drive thick oil through the channels. If the picture is complemented by an old battery, then this aggravates the situation even more. Therefore, you need to try to purchase oil of exactly the viscosity at which the engine can start normally even in cold weather. Typically, a product with a viscosity of 5W30 is purchased. But in any case, you need to look at the manufacturer's recommendations. You should not deviate significantly from the tolerances.

Why the engine won't start

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

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

First of all, knowledgeable car owners check:

If the latter is generally functioning, you should make sure that it rotates normally. The problem sometimes occurs if the battery or other elements of the starting system were replaced the day before.

The lack of voltage in the battery requires a mandatory check of the generator, because it is he who must charge it. At the same time, very often over time, the contacts in the electrical circuits of the car become oxidized, contaminated, or simply become disconnected. This must be taken into account.

As practice shows, these are the reasons most often behind the inability to start when cold.

Starts and stalls

It also happens that the Priora has difficulty starting when cold and stalls. First of all, experts attribute this to the fact that little fuel is supplied to the combustion chambers, and with it cold air, which interferes with the normal ignition of the fuel mixture.

This problem can be fixed. To do this, you need to insert the ignition key into the lock to start the fuel pump. The ignition is turned off and then turned again to start the pump. When the pump is turned off, you can proceed to start the car.

The second solution to this problem is to check and try to stabilize the pressure in the fuel system. They also check the fuel filter and adjust the throttle clearance. Next, check the spark plugs and wires.

Communities Lada Priora Lada Priora Club Blog Starts and stalls what's the matter

Hello guys! Who is watching knows - the car is after an accident! I bought a new automatic transmission system! The problem is this: I insert the key, turn it, everything lights up, the fuel pump works, I start it and it just starts and immediately stalls! There is no time to react to the gas pedal! Where to dig? what could be the problem ?!

Once again I need your help! Anyone who has encountered this, TELL ME!

Comments 39

My friend, tell me, what was the reason? why did she go deaf?

Salute, during an accident the intake manifold was punctured!

Thank you very much for your prompt response! I didn’t have an accident, I’ll check the IAC tomorrow.

My pleasure ! ))) his first thing! Air is being sucked in somewhere...

There is no need to guess, but you need to go for diagnostics - so that they connect the device and see if there are any error codes. I had such a problem, I replaced a bunch of sensors according to the advice from the hot weather (both IAC and TPS), well I didn’t get to the mass air flow sensor. I cleaned the whole throttle and it turned out to be nothing. phase sensor (which I didn’t even think about) so don’t be lazy and get to the service center.

I didn’t have time to tinker with the car today, I think tomorrow!

The book “ECM of cars of the LADA Priora, LADA Kalina, LADA 4×4 families with controller ME17.9.7/M75 EURO-4 device and diagnostics” should help

From the heart! Very useful! Good luck on the roads!