The Chainsaw Does Not Pick Up Speed Under Load

The chainsaw stalls under load cause. Why does a chainsaw stall when heated

It often happens that the chainsaw starts up cold, but stalls during the heating process. This behavior of the tool can be caused by the following reasons:

• The carburetor is incorrectly set. This problem can be identified by how the device is started up on a cold one. If it is performed without closing the air damper, and the engine starts without a preliminary flash, then this means that after the engine warms up, the fuel fills the candle. The solution to this problem is to adjust the carburetor. Details on carburetor adjustment
• Coil (ignition module) malfunction. You can identify this problem by sequentially checking the spark, first on a cold, and then on a hot motor. If there is no spark on a hot engine, then the ignition coil must be replaced.
• Defective spark plug. In this situation, as in the case of a malfunction of the ignition module, the spark disappears when the engine heats up. It is necessary to replace the spark plug with a new one, and if this does not lead to a solution to the problem, then the ignition module and the distance between it and the flywheel should be checked.

The chainsaw starts and stalls. the reason

If the chainsaw starts and stalls at the first attempt to do the job, then the reason may be problems with the chain brake or its jamming due to lack of lubrication. In this case, the oil level is measured. If the amount of lubricant is sufficient, then the reason may lie in the tube that leads it to the lubricating mechanism.

Another reason may be carburetor breakdown. If he only needs adjustment, it can be done independently in accordance with the annotation. If the carburetor needs cleaning or repair, then you cannot do without the help of professionals.

Another possible cause of this malfunction is a low fuel level in the tank. In this case, the chain saw stalls when tilted, since the remaining fuel mixture ends up in the part of the tank opposite to the place where the Suction pipe is located.

Why the chainsaw picks up speed and stalls

If the chainsaw is NOT able to pick up speed a minute after starting, or stalls when the gas trigger is pressed, most likely the carburetor or crankcase is leaking. As in the previous case, the problem can be solved by checking for leaks and adjusting the carburetor.

If the chainsaw picks up speed and stalls after it has been running normally for about 5 minutes, the reason may be a defective fuel tank breather. The vacuum created in the fuel tank during tool operation prevents the engine from receiving the required amount of fuel for its normal operation, and for this reason it will be unable to gain speed or stall. At the same time, if you stop the tool, open and close the fuel tank cap and start the chainsaw again, the tool will work normally again for about five minutes, after which it stops gaining speed or stalls.

The reason that the chainsaw is picking up speed can also be excessive carbon deposits in the muffler, which makes it difficult to release exhaust gases, thereby reducing the power and engine speed.

If you want to check the tightness of the crankcase, but there is no special tool, you can use the following test procedure.

What to do if the chainsaw stalls when you press the gas

One of the most common questions regarding the operation of this device: why does the chainsaw stall when you press the gas and what should be done to solve this problem? In such a situation, you need to do the following:

• Check the fuel filter;
• Inspect the fuel hoses for tightness;
• Check the muffler;
• Try to speed up a little;
• Check the condition of the rubber seals on the crankshaft.

Why the chainsaw starts up and immediately stalls

The chainsaw starts up and immediately stalls, the reason for this behavior may be hidden in the carburetor. A malfunctioning fuel pump or malfunctioning of the main fuel jet can be a prerequisite for this behavior of the saw. The inability to operate the chainsaw after starting, requires a full diagnosis at the service center.

All of the above options for engine malfunction have similar reasons, which, depending on their neglect, may have different manifestations. For example, with a slight intake of air into the crankcase of the engine, its operation will not change much, the engine power will drop slightly, its maximum speed will increase, and it will be able to heat up a little more. In the middle stages of air leakage, the engine will stop idling and will get very hot during operation. Strong air leakage will make it impossible for the saw to work, it will start and immediately stall.

In parallel with the visible manifestations of malfunctions, for example, the inoperability of the chainsaw after starting, inside the engine at the time of its malfunctioning, there will be processes that irreversibly lead dust to the most severe consequences, for example, piston melting, crankshaft seizure.

Why the chainsaw stalls, the main reasons. The chainsaw starts and stalls cause

Owners of chainsaws sometimes have to deal with the fact that the saw, for no apparent reason, stops working normally. To understand why the chainsaw stalls under various operating modes, and also to describe how you can diagnose a malfunction, we will try in our article.

Why the chainsaw picks up speed and stalls

If the saw cannot pick up speed or stalls when you press the gas, then most likely this is NOT caused by the tightness of the carburetor or engine crankcase. This malfunction is eliminated by checking for leaks and adjusting the carburetor.

In addition, this malfunction may be associated with a defect in the fuel tank breather. Due to the formation of a vacuum in the fuel tank during the operation of the chain saw, the required volume of the fuel mixture is not supplied to the engine, as a result of which it cannot gain speed or stalls. If you stop the chainsaws, open and close the fuel tank and turn it on again, it will work normally for about five minutes, and then it will stop picking up speed again or stall.

Another possible prerequisite that the saw is NOT able to pick up speed may be excess carbon deposits in the muffler, making it difficult for exhaust gases to escape, which reduces engine power and rpm.

The chainsaw is gaining momentum: an overview of the reasons and DIY repair

Malfunctions occur both in expensive German or American modifications of chainsaws, and in their cheap Chinese fakes. It’s nice when the moment of starting the motor tool goes smoothly: the saw warms up and gradually reaches the rated power declared by the manufacturer, which is issued throughout the entire working cycle. Things are worse if everything happens the other way around: after pulling the throttle cable, the unit starts to slip, the jerk works after short pauses, stalls and re-starts from the Pusher.

There can be many reasons for this phenomenon, as well as scenarios for the development of events. Let’s consider in detail each working situation and breakdowns that preceded them.

Why the chainsaw is gaining momentum?

Launching is a complex multilevel process that involves almost all of the saw’s life support systems. That is why the fact that the saw loses speed, turns on intermittently and feels confident exclusively at idle speed should be considered from different angles.

Such factors could lead to this:

• Defective motor. its service life could be exhausted, and the piston rings and cylinder could wear out, deform or even corrode;
• A failed spark plug or the coil itself. as a result, the spark required to ignite the fuel-air mixture is not generated;
• Unbalance of the carburetor screws, as well as a number of reasons that could disable it.

The chainsaw develops speed: we test the device for malfunctions

The ignition module can be diagnosed for problems visually. For this you need:

• Unscrew the candle;
• Evaluate its appearance (It should not be drenched in gasoline or contain a black coating)
• Check the distance between the coil and the magnets (up to 0.2 mm);
• If necessary, examine the spark plug unit for spark supply using a working mains wire.

If, after checking, the defects were not found, it is worth moving on to checking the carburetor block.

This working unit is one of the most vulnerable in modern chainsaws. New tools, which come on sale from the factory, have basic settings. for low and high speeds, which must be reset after running-in and running-in of all parts. Similar actions are performed if the saw does NOT develop traction corresponding to the maximum torque according to the instructions.

In this case, you need to reconfigure one of them. the “H” jack, which is responsible for the operation of the saw under load. To do this, it is enough to adjust the fuel supply when the engine is turned on at the Highest speed of the chain rotation, Using the tachometer and the operating instructions.

What if the chainsaw keeps idling?

Idling problems are considered constant companions of chainsaws. There may be several prerequisites that could lead to glitches at the time of starting and spinning of the circuit during idle operation, the main of which are:

• Clogged air and petrol filters;
• Poor quality fuel mixture or improper preparation;
• Incendiary module malfunctions
• Carburetor, the settings of which have ceased to correspond to the load on the dust;
• The propulsion elements are deformed or rusted.

A number of actions are sequentially performed:

• Flush the fuel hose or replace it with a new one,
• They clean the air filters, which could be forgotten by sawdust and dirt particles. Modern air filters are reusable, they can be washed with the addition of detergent, completely removing them from the saw body;
• Check gasoline and engine oil, which may be of poor quality or simply not suitable for working with this saw;
• Test candles and carburetor.

Eliminating one or more possible faults usually returns dust to its former strength.

Other chainsaw malfunctions

A lot of users are faced with trouble when the chainsaw drops off. The device reaches its maximum power in a matter of seconds, which cannot be reduced.

This may be due to the fact that:

• The throttle valve does NOT work. its spring or thrust element has weakened;
• The inclusion toggle switch does not switch well;
• Throttle shaft lost its spin.

But the opposite situation can also be. when the saw gains power uncontrollably. The reasons why the chainsaw itself is gaining momentum should be sought in:

• Carburetor. it needs to be cleaned or reconfigured;
• Fuel supply system. petrol filter, fuel hoses;
• Malfunctions of the cylinder-piston or branch pipes connecting them to the carburetor.

There are a lot of breakdowns, which manifest themselves through revolutions atypical for a particular part of the working cycle. But an attentive attitude to the tool will help diagnose them in time and return it to normal operation.

What can serve the fact that the chainsaw keeps idling?

As they say, to start up. it started up, and then stalls and does not have time to move to the next power level. Many conditions can serve this:

• Clogging of filtration parts;
• Malfunctions of the Incendiary System;
• Lost carburetor adjustments;
• The gasoline drive is defective or damaged during operation;
• Clogged muffler or exhaust ducts;
• Faulty cylinder-piston and installed valves.

Of course, it is difficult to independently diagnose everything at once, but moving through the proposed points you can still get an answer to your question. In half the cases, it is enough to clean the carburetor, check the installation of the jets. and the job is done, the chainsaw works as before.

All about the revs of gasoline dust

Modernization does not stand still. And the old chain chainsaws, Which, in addition to being able to only cut wood, emitting a terrible roar and vibration, heard almost for kilometers, are long in the past. Virtually silent, sophisticated tools that now equate to pleasure have flooded the market, giving users a feeling of complete happiness and technical freedom.

But, unfortunately, no matter how technical and visual the advanced technology is, its breakdowns are a fairly frequent occurrence, in which manufacturers only say “by default”. Chainsaws are NOT an exception to this, multifunctional working units that require tremendous attention to themselves from the user in order to recognize the “catch” in time and stop the problem at the earliest stages.

The main such nuances usually relate to the moment of launch, which should be taken with full responsibility. Let’s take a look at the main processes that can occur with a chainsaw when the engine is turned on.

The chainsaw is gaining momentum. how to be?

over, this phenomenon may be accompanied by the fact that the motor periodically does NOT start at all, it loses speed, and the load does NOT withstand more than idle. If you do not give attention to this problem in time, you can generally “lose” it due to severe overheating.

The main reason for this usually lies in the engine area, which is why it is worth taking a closer look there.

The following actions can help:

• Checking the throttle cable;
• Inspection of the return spring, which could simply come off;
• Sealing the rear flap, which must be very tightly closed.

Usually one of these activities can make a huge difference.

Another technical problem is the situation when the chainsaw itself is gaining momentum, the reason for which is usually more than one. In this case, as well as under load, the saw may start to stall from time to time, do not let us fully use it for its intended purpose.

Regarding the carburetor, the source of malfunction can be:

• Wear of piston components;
• Its littering;
• Breakage of air filters;
• The use of gasoline with a low octane number and inadequate quality;
• Damage due to vibration from the tool itself.

Each individual model is usually based on a 3-screw adjustment method, and a screw will help to reach the maximum torque “H”.

And yet, if the chainsaw develops speed, perhaps even the reason is not in itself, but in the time of year in which the work is being done. So, the minus mark of the thermometer is one of the factors that can completely “brace” the chainsaw. Many users note that in severe frosts, even filling the oil does not help to warm up and the grease involuntarily solidifies on the tire. Ice coating of the carburetor and frost on it is also a fairly common thing. What can be done?

Reduce the operation of the tool to the onset of the body, or, if the construct allows, change the damper mode from summer to winter, which is installed on individual models under the cover of the air filters.

What to do if the chainsaw drops off?

The opposite of the previous situation is when the gasoline-powered tool very quickly reaches high power and DOES NOT reduce it. In this case, it can be observed that neither the screw on the body nor the cleaning of the carburetor can eliminate this. It would seem, what else is needed, the saw works, gives out power as in the instructions. But the trouble is that in this case you need ten times more fuel than usual.

Other points that could lead to such consequences are:

• Malfunctions with spark plugs;
• Problems with the carburetor or simply incorrect adjustment.

The spark plug lends itself to visual diagnostics, therefore, if it is too dry or, on the contrary, very wet, and even with a significant coating on top, it is necessary, if not to replace it with a new one, then simply clean it or dry it and try it outside the saw ignition system.

The leading reasons for this may be:

• Clogged carburetor or fuel and air filters;
• Violation of the integrity of the hose, which supplies fuel;
• Depressurization of the leading pipe from the carburetor to the engine cylinder;
• And again, incorrect adjustment of one of the screws (usually the H-screw) of the carburetor system.

Therefore, the simplest thing to do at home is to clean the carburetor and filters, both air and fuel. At the same time, it is important to maintain the correct adjustment of the screw elements L and H. Some advise to completely remove the fuel filter from the structure, but even this without leaving, because the carburetor will NOT last so long.

Therefore, before starting work, you just need to look, and whether it sinks, whether there are kinks in the hoses through which the fuel enters, and then you can already take more drastic actions.

As you can see, there are many problems, but an excellent panacea for each of them is timely diagnostics that can answer many questions about a technical malfunction of the device even before they appear.

Mechanical faults

A sudden stop of the chainsaw can be caused by a seizure of the piston in the cylinder or destruction of the crankshaft bearing due to oil starvation or poor quality engine oil.

In the first case, the performance of the tool can be restored by pouring a few drops of engine oil into the plug hole. Elimination of damage to the crank mechanism provides for complete disassembly in a well-equipped workshop.

Elimination of fuel equipment failures

A simple analysis of failures and malfunctions shows that more than half of them are due to unskilled tuning of the fuel system. Upon closer examination, it turns out that the reasons for the situation when the engine does NOT start, but does not pick up speed and stalls are almost the same.

In most cases, these are:

• Air leaks due to loosening of the screw fastener or destruction of the crankshaft stuffing box;
• Nozzle contamination;
• Float valve leaks;
• Booster pump seal worn out.

An easy way to determine the quality of a mixture

The easiest and most affordable way to check the quality of the mixture is the spark plug center insulator. A brown color of any intensity indicates correct carburetor adjustment.

The result of working on a rich mixture is the formation of black carbon deposits on the insulator, a lean mixture. a white or light gray insulator manifests itself as pure.

If, after normal start-up and warm-up, the fuel-filled saw periodically stalls during operation, it is recommended to eliminate the vacuum in the gas tank by cleaning the breather. The cause of unstable engine operation may be condensate water that has entered the carburetor float chamber.

Fuel system tuning

Qualified carburetor adjustment allows you to bring the power unit to a combination of maximum traction characteristics and economical fuel consumption.

The success of the work is facilitated by pre-cleaning the air intake filter, warming up the engine to operating temperature, making adjustments in the sequence specified by the instruction.

Correct carburetor setting results in:

• Rapid set of revolutions without the characteristic of a lean mixture “failure” with a sharp gas supply;
• Lack of increased smoke from the muffler;
• Stable idle speed.

Self-repair benefits

Experts offer several search options. the reasons for a poor engine start or if the power unit stalls during operation. Recommendations are equally valid for domestic and professional chainsaws.

Owners with experience in the operation of chainsaw equipment use simple, time-tested intuitive algorithms for troubleshooting, which allows you to quickly eliminate many failures and breakdowns directly in the process.

The success of the work is facilitated by knowledge of the design of the tool and the interaction of all its components, the availability of plumbing and repair skills and operating experience. These same abilities allow owners to use their chainsaw technology with high efficiency.

Self-repair provides an opportunity for significant savings in material resources and reduction of forced downtime.

Why chainsaw stalls: reasons and solutions

If the chainsaw starts up badly and stalls, the performance of the simplest sawing work is out of the question. Not only budget-class instruments are prone to spontaneous failures, but also quite prestigious models from leading manufacturers.

Engine stalls when going to idle

The malfunction is manifested by unstable operation in the operating mode and stalls at idle. The reason for this phenomenon is most likely in the air leak between the carburetor and the suction pipe of the cylinder. The failure is eliminated by tightening the screw fasteners.

Signs of typical failures

If the saw engine does NOT rev up and stalls rather than develops power and stalls under load, it is likely that there is a shortage of fuel or improper carburetor adjustment.

Possible causes include dirty fuel filter or air intake filter element, too rich or poor gasoline-air mixture.

Signs of engine running on a rich mixture:

• Slow set of revolutions;
• Smoke from the muffler;
• Decrease in traction performance and excessive fuel consumption.

The chainsaw stalls when you press the gas. most likely the mixture is too lean.

The reason for stopping the chainsaw in the midst of work may be:

• Poor quality of component parts and whole assemblies;
• Unskilled care;
• The use of low-quality fuel and oil substitutes;
• Illiterate exploitation.

Remoteness from maintenance services and the high cost of the provided repair services, forcing owners of failed tools to restore their functionality on their own.

This option is possible only after the end of the warranty period. The difficulty lies in the fact that the traces of dismantling of SEPARATE components and assemblies noticed by service specialists may become the fault of refusal to repair more complex and expensive parts for free.

Self-repair benefits

Experts offer several search options. the reasons for a poor engine start or if the power unit stalls during operation. Recommendations are equally valid for domestic and professional chainsaws.

Owners with experience in the operation of chainsaw equipment use simple, time-tested intuitive algorithms for troubleshooting, which allows you to quickly eliminate many failures and breakdowns directly in the process.

The success of the work is facilitated by knowledge of the design of the tool and the interaction of all its components, the availability of plumbing and repair skills and operating experience. These same abilities allow owners to use their chainsaw technology with high efficiency.

Self-repair provides an opportunity for significant savings in material resources and reduction of forced downtime.

The chainsaw engine turns off after reaching the maximum speed mode

The power unit stalls at high speeds due to a discrepancy with the declared performance requirements of the electronic unit. Failure is more typical for budget chainsaws made in China.

The reason for the refusal may be:

• Lack of fuel mixture in the float chamber due to valve sticking;
• Clogged fuel filter or breather in the fuel tank cap.

The power unit also stalls at high revs due to a dirty air intake filter. The same signs are typical for a situation when the chainsaw starts up in standard mode and stalls during the warm-up phase.

Fuel system tuning

Qualified carburetor adjustment allows you to bring the power unit to a combination of maximum traction characteristics and economical fuel consumption.

The success of the work is facilitated by pre-cleaning the air intake filter, warming up the engine to operating temperature, making adjustments in the sequence specified by the instruction.

Correct carburetor setting results in:

• Rapid set of revolutions without the characteristic of a lean mixture “failure” with a sharp gas supply;
• Lack of increased smoke from the muffler;
• Stable idle speed.

An easy way to determine the quality of a mixture

The easiest and most affordable way to check the quality of the mixture is the spark plug center insulator. A brown color of any intensity indicates correct carburetor adjustment.

The result of working on a rich mixture is the formation of black carbon deposits on the insulator, a lean mixture. a white or light gray insulator manifests itself as pure.

If, after normal start-up and warm-up, the fuel-filled saw periodically stalls during operation, it is recommended to eliminate the vacuum in the gas tank by cleaning the breather. The cause of unstable engine operation may be condensate water that has entered the carburetor float chamber.

Signs of typical failures

If the saw engine does NOT rev up and stalls rather than develops power and stalls under load, it is likely that there is a shortage of fuel or improper carburetor adjustment.

Possible causes include dirty fuel filter or air intake filter element, too rich or poor gasoline-air mixture.

Signs of engine running on a rich mixture:

• Slow set of revolutions;
• Smoke from the muffler;
• Decrease in traction performance and excessive fuel consumption.

The chainsaw stalls when you press the gas. most likely the mixture is too lean.

Why chainsaw stalls: reasons and solutions

If the chainsaw starts up badly and stalls, the performance of the simplest sawing work is out of the question. Not only budget-class instruments are prone to spontaneous failures, but also quite prestigious models from leading manufacturers.

Determining the nature of the malfunction

The main part of the failures of chainsaws of any class falls on fuel equipment. For the ignition system, this figure is an order of magnitude less. Stopping the chainsaw due to mechanical malfunctions in the practice of domestic and professional sawing works is even less common.

Engine shutdown in operating mode

Alternatively, if the chainsaw heats up and stalls, troubleshooting should be sought in the carburetor settings or in the high-voltage circuit of the ignition system unit.

When it overheats, the spark disappears or becomes so weak that its power is not enough to fully ignite the fuel-air mixture.

The engine also stalls on hot in the event of a malfunction of the interference suppression, which is located in the tip of the spark plug.

The reason for stopping the chainsaw in the midst of work may be:

• Poor quality of component parts and whole assemblies;
• Unskilled care;
• The use of low-quality fuel and oil substitutes;
• Illiterate exploitation.

Remoteness from maintenance services and the high cost of the provided repair services, forcing owners of failed tools to restore their functionality on their own.

This option is possible only after the end of the warranty period. The difficulty lies in the fact that the traces of dismantling of SEPARATE components and assemblies noticed by service specialists may become the fault of refusal to repair more complex and expensive parts for free.

Why the motor isn’t picking up speed: from simple to complex

At the very beginning, we will consider simpler and more obvious faults. The set of revolutions while driving is strongly influenced by the feed efficiency, the timeliness of ignition and the usefulness of combustion, as well as the composition of the fuel-air mixture.

A common prerequisite when the engine does NOT pick up speed (injector, carburetor, diesel, gas car) is problems in the ignition system, as well as in the air and fuel supply systems. Experts point out the following:

• Severe contamination of the air filter Reduces the ability of air to penetrate the filter element, as a result of which the engine becomes uneven, the unit loses power and does NOT gain speed. Also, a common prerequisite for problems with the air supply may be that a foreign object (rags, plastic bag, etc.) may accidentally appear in the air filter housing.
• You should also pay attention to the suction of excess air at the intake as a result of various defects in the intake system. The problem can appear both unexpectedly and gradually progress. Note that the motor usually does NOT pick up speed in the event of severe air leaks. The fact is that in the composition of the fuel-air mixture, the normal ratio of air to fuel in such a situation deviates significantly from the norm. The mixture turns out to be very “poor” (a lot of air and a minimum of fuel). On such a charge, the engine starts, but does not gain momentum while driving, and also works intermittently.
• A similar picture can be observed when the required amount of fuel is NOT supplied to the unit. The culprit may be the fuel filter, which can also be very forgotten. Note that there may be no problems with starting the engine, since there is enough fuel for the XX mode. In parallel with this, while driving, the car may jerk, react to pressing the gas pedal with a long delay, when accelerating, dips may occur, or the unit may NOT spin above any mark on the tachometer.
• A dirty filter mesh of the gasoline pump can lead to similar symptoms. On the indication of the filter, deposits from the fuel tank tend to accumulate over time. As a result, the fuel pressure in the system becomes insufficient, the pump performance drops, and the motor itself is not able to operate normally in different modes. It often happens when the engine picks up speed and stalls precisely because of a clogged grid.

Now let’s talk about malfunctions, which may require certain knowledge, skills and equipment for diagnostics, and will also appear as a reason for a visit to a car service. To begin with, this list of faults usually includes those when the engine does NOT pick up speed due to the failure of any element of the ECM, ignition system, power supply, etc. In other words, we are talking not about “consumables” (candles, wires, filters, pipes), but about the details. In parallel with this, it should be considered whether the breakdown occurred unexpectedly or the malfunction progressed gradually.

• One of the reasons can be knocked down timing phases. Violations of the synchronous operation of the gas distribution mechanism during the intake and exhaust strokes lead to the fact that the intake and exhaust valves do not open in time. The malfunction occurs as a result of errors during the timing belt replacement, if the specified timing belt has jumped one or more teeth. Also, improperly adjusted valves (the problem does NOT manifest itself abruptly), various malfunctions in the variable valve timing systems, breakdown of the timing chain drive, etc.
• Unexpected breakdowns include the failure of the ignition module, as well as malfunctioning of the ignition coils. In this case, cylinder misfires begin, the engine troit and loses its ability to pick up speed normally.
• In situations with engine speed, the power supply of the injection nozzles should be checked. If there are problems with the wiring, then the control signal is NOT supplied to the injector or is intermittently received. As a result, the injector does not open in a timely manner, misfires occur in one or more cylinders, the engine does NOT pick up the required speed and loses power.
• A fuel pump or fuel injection pump on diesel engines may fail. This malfunction usually does not occur immediately (unless the electrical wiring to the pump is damaged). Much more often, the drop in pump performance is gradual. Sooner or later, the pump will start pumping fuel very weakly, the pressure will be enough only for operation in the XX mode. An increase in load and speed will lead to the fact that the engine can stall under load, and not spin, etc.
• In SEPARATE cases, severe contamination of the injector itself leads to similar results. Driving on poor quality fuel, as well as ignoring the necessary cleaning procedure for the injectors every 30-40 thousand kilometers traveled may mean that the performance of one or more fuel injectors has dropped significantly.
• The engine speed can also be affected by the status of the EGR system, the throughput of the catalyst or particulate filter. As for the second case, exhaust gas evacuation worsens through a clogged catalyst, the engine literally “suffocates” and is NOT able to pick up normal speed.
• In parallel, it is necessary to check various sensors of the electronic engine management system. Their incorrect operation can affect the composition of the mixture, that is, the amount of fuel and air supplied to the internal combustion engine. These sensors include DPDZ, DMRV and a number of others.

Why the engine is not picking up speed well

During the operation of a gasoline or diesel engine, the driver may be faced with the fact that when the gas is pressed, the engine does NOT pick up speed. Note that after installing LPG equipment on a car, such a problem often arises when the engine does NOT pick up speed on gas, although the car runs normally on gasoline. Malfunctions of various kinds can cover both fairly simple things, and indicate the need for serious repair of the internal combustion engine. Next, we will consider why the diesel engine does not pick up speed or the gasoline engine refuses to spin up.

Frequent malfunction: the engine is NOT picking up speed and what should the driver do

If the engine stopped gaining speed, then the first step is to analyze when and how it manifested itself. In other words, the unit stopped spinning unexpectedly, or the problem with a set of revolutions gradually progressed. You should also pay attention to the presence or absence of other symptoms.

The fact is that the refusal of a previously properly engineered engine to gain momentum after carrying out any repairs or other manipulations may simply be the result of assembly errors, and not of a connected sensor, etc. In such cases, the malfunction can be determined faster and more accurately after an independent inspection or the immediate return of the vehicle to the service where the car was previously repaired.

What’s in total

Considering that there are a lot of reasons for problems with a set of revolutions on a modern car, it is optimal to immediately connect the car to the diagnostic equipment (scanner) to search for possible errors. This is especially necessary when the engine is NOT picking up speed and the check on the dashboard is on.

Such failures are associated with a software failure in the operation of an electronic device. The ECU mistakenly assumes low speed (for example 2-3 thousand rpm) according to the so-called “cut-off” speed and stops the fuel supply. In other words, the conditional protection against exceeding the permissible number of maximum engine speed is triggered prematurely.

Finally, I would like to add that timely cleaning of the injector, replacement of spark plugs and ignition wires, filters and filter elements of the fuel pump, cleaning the throttle valve, correct throttle adjustment and a number of other service procedures will allow you to get the maximum power from your internal combustion engine. As for vehicles with LPG, the correct installation and adjustment, as well as the timely replacement of filters and maintenance of the second elements of gas equipment will depend not only on the engine power and its gas revolutions, but also on the overall service life of the power unit.