Plotting of the idle regulator. Idling regulator: Purpose and repair RXX. The most common idle malfunctions

Dear buyers, to avoid errors when sending a connecting connector to the regulator idle move (RXX), in the "Comment" line, specify which RXX, model of your car, year of release, injector or carburetor.

Any breakdown is not the end of the world, but a completely solved problem. Sensors relate to measuring instruments, they convert the measured physical quantities into electrical signals and display digital data on the scoreboard.

The main purpose of the idling regulator (RXX) is:- change in the rotational speed of the crankshaft by adjusting the lumen and changes in the number of passing air. It is an engine component and is of great importance for the normal operation of the car as a whole.

This air is taken into account mass flow sensor (DMRV) And, in accordance with its amount, the controller flows into the engine through fuel injectors. On the position sensor crankshaft (DPKV) The controller tracks the number of engine speed and in accordance with the mode of operation of the engine controls the RXH, thus adding or reducing the air supply by turning the closed throttle. On a warm T. operating temperature Engine controller The electronic unit Engine control January 7.2 (81 contact) for VAZ 2110-2112 ART. 21114-1411020-31 Supports idle speed. If the engine does not warm, the controller at the expense of RXX increases the turnover and, thus, ensures the engine warming at elevated crankshaft. This mode of operation of the engine allows you to start moving the car immediately and not warming the engine.

Pad connecting 2112 - 1148300Ah (4 contacts assembled with wires), is one of the elements of the controller harness, connects to the RCH with the electronic fuel injection system on VAZ 2108, 2109, 21099, 2110, 2111; 2113; 2114, 2115; 2112, VAZ 2170, VAZ 2190, Kalina 2, VAZ-2121, VAZ 21213-21214i, VAZ-2123, VAZ-2131, Largus and their modifications. The shoe can be used for self-making cable. Contacts are already pierced on wires (wire length 100 mm) and inserted into the connector, you can put on a car.

Idling sensor (RXX) consists of stepping electric motor, Springs and rods ending with a conical needle. With the help of two row screws, the idling regulator of the VAZ is attached to the throttle housing. When the car owner turns the key in the ignition lock, the rod is extended, resting in the seatper: the sensor reads the steps and the valve comes to the original position.

Replacing contact media 21203-1148300Ah (4 contacts) assembly with wires that is an element of the ignition system, which connects the idling regulator on VAZ 2108, 2109, 21099, 2110, 2111; 2113; 2114, 2115; 2112, VAZINA, VAZ 2170, VAZ 2190, Kalina 2, VAZ-2121, VAZ 21213-21214i, VAZ-2123, VAZ-2131, Largus, VAZ 2120 and their modifications with an electronic fuel injection system, can be done independently without referring to specialized Services Services.

Other articles of goods and its analogues in the catalogs: 212031148300Ah, 211201148300Ah

VAZ 2108, 2109, 21099, 2110, 2111; 2113; 2114, 2115; 2112, Lada Kalina, VAZ 2170, VAZ 2190, Kalina 2, VAZ-2121, VAZ 21213-21214i, VAZ-2123, VAZ-2131, Largus, VAZ - 2120.

Any breakdown is not the end of the world, but a completely solved problem!

How to reveal the problem of the idling regulator (RXX) by car VAZ of their modification?

How to independently replace the idle regulator (RXX) w. car Chevrolet. Niva -2123, VAZ 2131 (Niva) and VAZ - 2120 "Hope" of their modifications?

How to independently replace the connector on the burning system harness to connect the idle regulator (RXX) by car VAZ of their modification?

With the online store Avtoazbuka. repair costs will be minimal.

Just compare and kill !!!

Ministry agriculture RF

FGOU VPO "Eagle Gau"

Faculty of Agriculture and Energy Support

Department of "EMTP and Tractors"

Josan A.A. Golovin S.I.

Principle of operation, diagnostics and testing of the idle regulator

Methodical instructions for laboratory work

by discipline " Technical exploitation Machines "and" Electronics on tractors and cars "

for students specialties: 110301 - "Mechanization of rural

guide ", 110304 -" Technology of maintenance and repair of cars in APK "

Methodical instructions are developed at the Department of "EMTP and Tractors" to. T. N., Associate Professor A.A. Josan and Art. Teacher S.I. Golovin.

Methodical Commission of the Faculty of Agrotechnics and Energy Support

protocol number ___ from "___" _______2007

Methodical Council Orelgaau, Protocol No. ___ from "___"

Reviewers: k. T. N., Associate Professor of the Department "Reliability and Repair of Machines" Orelgaau A.L. Semers;

to. t. N., Associate Professor of the Department of Sirm OrelGTU M.P. Stratulat.

Introduction ..................................................................................... .. ... .. 4

1 General…………………………………………………………... 6

1.1 Appointment of RXH ............................................................... ... 6

1.2 Types of RXX used on VAZ cars ......... ........................ 7

2.1 General information .................................................................. 12

2.2 Methods of management. ....................................................................... ... 16

2.3 Principle of operation of the stepper engine RXH VAZ ........................ ... 18

3.3 Development of the functional scheme of the Tester RXH ......................... 24.

3.4 Selecting an element base. Calculation of the main nodes of the tester ............... 25

3.5 Development of the concept of the Tester RXH ........................ 28.

3.6 Methods for conducting PCH tests on the stand ........................ 33

Introduction

Inlet system of modern gasoline engines consists of several elements, the most difficult of which is throttle

node (Figure 1.1).

1 - coolant supply nozzle; 2 - Carter ventilation pipe at idle; 3 - Cooling

liquid; 4 - throttle position sensor; 5 - idle regulator; 6 - fitting for blowing an adsorber.

Figure 1.1 - throttle nozzle assembly.

The design of the throttle unit must meet multiple contradictory requirements. This is, first of all, the presence of a sufficient passage segment selected from the conditions for obtaining the maximum

pushable gas-dynamic losses at maximum air consumption engine. The fulfillment of this requirement leads to the fact that

sections sufficient for maximum costs

ha, the opening angle of the throttle valve providing max

symal filling at the minimum operating frequency of rotation

the lacented engine shaft is about 200. In terms of characteristics

car manageability rustic, it is unacceptable because it is not allowed

it takes the driver to confidently control the car in case of working

you engine in the low-speed crankshaft rotation area where ab-

salt values \u200b\u200bof air consumption relatively small. From here

the requirement for the linearity of the transfer characteristic of the throttle assembly, that is, the requirement to ensure the proportionality between

the accelerator pedals and the power developed by the engine,

changeable in the entire range of changes in the position of the throttle valve.

Provide an acceptable linearity of the transfer characteristic of the throttle assembly help various kinds of nonlinear mechanical links that bind the accelerator pedal and throttle valve engine

tel. But more promising is the use of electrically controlled actuators when fully or partially

supervising kinematic communication between the accelerator pedal and the throttle

salt damper. This solution allows not only to get the right transmission characteristicbinding the position of the accelera pedals

torah and throttle, but also apply more efficient ways to control the engine's workflow. The use of an electrically controlled throttle is currently limited due to its high costbut the use of a simpler actuator

road - adjustable air regulator, in particular idling regulator (RXX), is mandatory.

1 General

1.1 Purpose PCX

The idling regulator is used to maintain the installed speed of the engine at idle due to the change in the number of air

ha, supplied to the engine bypassing a closed throttle (ri-

sOCK 1.2). In a fully extended position (extended until

the position corresponds to "0" steps), the conical part of the stock overlaps

dual air in the circumference of the throttle. When opening (ho

the location increases) the valve provides air consumption,

fulmental movement of the rod (number of steps) from its seat.

The fully open position of the valve corresponds to the movement of the rod by 255 steps.

1 – stepper engine idling regulator; 2 - throttle nozzle; 3 - throttle; 4 - locking needle Valve RXX; five -

electrical connector; A - incoming air.

Figure 1.2 - PCX air adjustment circuit.

On a heated engine of the ECU, driving the movement of the rod,

holds the constant rotation frequency of the crankshaft at idle, regardless of the engine status and from the load change (including

electrical fan, air conditioning compressor, etc.).

In addition to controlling the rotational speed of the crankshaft in idle mode, the RXC is controlled, which contributes to the reduction

the toxicity of exhaust gases. When the throttle is sharply closed when braking by the engine, the RCH increases the amount of air supplied to the circumference of the throttle, providing dinner

the fuel and air mixture. This reduces hydrocarbon emissions and op-

cons of carbon, occurring during the rapid closing of the throttle.

1.2 Types of RCX used on VAZ cars

On domestic passenger cars: VAZ 2110, 21083, 21093, 21099 and their modifications with engines of VAZ-2111 and VAZ-2112 with a system of distributed fuel injection are installed by the RCH of two firms

products:

1. Kaluga plant of telegraph equipment (KZT) RXH 2112-1148300-02 (Figure 1.3)

2. Electromechanical plant of JSC Pegasus (Kostroma) RCH 2112-1148300-01 (Figure 1.4)

Figure 1.3 - RXX 2112-1148300-02

Figure 1.4 - RXX 2112-1148300-01

Figure 1.5 - dimensions RHX

Table 1 - Specifications and operating conditions

Yes, and let's say, in your inexperience, I can not understand how minus coming with the ECU in the company with a minus on the body shows the tension, that's what I wanted to know Eat on the engineered car everything becomes normal means a minus appears so to speak, the sore manifests exactly when started, tension On both legs equally. And even if we decided that there is no minus from the brains in the ignition mode and the launch that leads to the unwanted RHX, then where to check this minus from the brains or is it a Khan brain?

Approximately I start catching up it turns out that minus at all as such does not go from the ECU on the RHX, and sitting somewhere in the brain and adjusts the voltage that the tastefulness passes from the overload relay through the coil of the RCH, so on the second leg, the voltage value is less than at the entrance as it comes it Resistance?

The most common system withRHX (2-pin) . Machines since 87, usually equipped with a catalyst and electronic ignition system EZL

System input signals :
- motor,
-teral air flow (signal with a flow meter potentiometer),
- motor motor (TD signal from the ignition system),
- Covering the throttle (Micrik "DZ closed" in the sensor on the axis of the DZ)
- Signal from the speed sensor "Sign of Car Movement" (from 9/88 years)
Executive devices:
- idling regulator (hereinafter PCH), is an actuator that changes the amount of air passing into the throttle bypass to work at idle. The XX control in KE is produced by stabilizing air flow, rather than engine speed. In the controller's memory there is a table of air flow dependence on the engine temperature.

When mixing Micric "DZ closed", the control unit (BU) on the engine temperature calculates the air flow, which must be stabilized and driving the RCH, is trying to get such a consumption. ECU is trying to stabilize the XX only when the car is worth it, i.e. In the movement on neutral, there may be increased speed and only after a complete stop somewhere after a second they fall to the norm.
Those. If in the current mode of operation of the engine (on hot t \u003d 90grad.) Air flow 0.7V, then the brains through the RCH will begin to cover the flap (lower the revolutions), but not lower than 750, i.e. What comes before - or air flow will become 0.6V, let's say at 750 turns, or turns will fall to 750.

It should be understood that there is not the exact value of the stabilized air flow, but a certain range, also compensation in the presence of automatic transmission, air conditioner, etc. (devices that increase the load on the engine that requires compensation)
Over time, spraying on the potentiometer paths in the XX zone is abruptly, and with the same deviations of the shovel of the flow meter, the signal increases, i.e. If the new engine at 800 revolutions was 0.55V, then it can be 0.7V and higher to the old age, and therefore the turns are always minimal (i.e., the system rests on the lower limitation - turns 700) ...

Now Ob. emergency mode: It occurs when the air flow signal ceases to satisfy some kind of voltage range, then the system must stop adjusting the XX and turn off the RCH, but simply do it can not be done so. The engine will stall (who knows the RXH device - will understand), so the system increases the speed and de-energizes the regulator, without voltage there is always 2mm. emergency window, (When starting it is open for the whole, then the cover as the engine is heated). For the driver it looks like this: first the twentieth is normal, then suddenly the turns are smoothly rising to 1500 (emergency window in the regulator).
It can be simulated on a running engine simply disconnecting the connector with RXX
Check

Measure relative to the mass of both contacts when the RXC is connected (slightly lower the connector, but not to remove). Motor works on one will be around 12-14V. , on the other, approximately on 5V less. If on one of the contacts 12-14B is net, check the overload relay.

More details

1. Regarding the mass, (black probe on the engine) tweak in both contacts. on one of them will 12V. (The same darnot as online). And on the other about 5V. less. 2. Between your feet - 5V. On the xx heated motor.

Fault

1. no power - You will not see the voltage relative to the body or on one leg. Check the overload relay and before in it.

2. On both contacts 12V, or between the feet 0B (both situations are equivalent) - No control of the Rhh brain. For example, when the potential is removed on the Bosch ECU there will be such a situation. With the VDO ECU will not.

The overload relay gives the battery voltage to one of the findings of RXX. Even without the ECU, gives. Those. When the ignition is turned on, at least one contact must come . No plus - overload relay does not give plus (or wiring).

ECU "RUALE" RXH in minus (mass). If brains do not roll - plus will be on both conclusions of the RXH (there is no mass from the brain).

In a simplified form, the idling knob allows the engine to operate when starting and subsequent stops of the car, for example, at intersections. It submits the missing amount of the air into the fuel mixture of the injector for normal operation of the immense motor or during the stop of the machine without joining the engine.

Purpose of the RXH regulator

The idling regulator is used solely in electronic ignition systems:

• proportions fuel mixes In the injector makes an on-board computer;
• the amount of gasoline or diesel fuel for each cylinder doubts the ECU;
• dPKV sensors (crankshaft), DPDP (throttle), DMRV (air), DD (detonation) are installed in the electronic ignition;
• when the gas pedal is released, the fuel flap is completely closed, the proportions of the fuel mixture are impaired, combustion products are sucked back into the combustion chamber due to the pressure difference in the intake and outlet manifold.

According to the results of the air sensor signals, the controller decides on the additional enrichment of the fuel mixture by air, ignoring at this point the readings of the throttle sensor.

The fishper on the RXX transmits a signal from the computer, in the idle regulator, the bypass canal opens, which passes air in the injector or additional fuel in the diesel. Motor turnover is equalized, the wear of piston and crankshaft decreases.

Operating principle

In carburetor engines, the problem of enriching the mixture with launch of DVS Solved the launcher and adjusting washers. With occurrence electronic ignition This is engaged in the idling regulator in the complex with the rest of the sensors and the ECU. His principle of operation is as follows:

• pCH calibration is made by the controller of the ECU automatically after the detection of this sensor in the system;
• in fact, RXX is a stepping electric motor with a conical needle in a special opening of the throttle channel of the throttle;
• RXX contact no signals in the brain does not transmit machines, but it receives them from the controller, therefore it is not a sensor, but an executive device - electroclap;
• in turn, the on-board computer "sees" that in the fuel mixture there is not enough air along the DMRV signals compared to the Signals of DPDZ;
• a voltage is served on the XX regulator, the needle comes out of the channel, the missing amount of air enters the mixture for mixing.

In addition, the ECU receives signals about the temperature of the coolant and oil in the system. When starting during the cold season, it is necessary to warm up the engine to the operating temperature to reduce the wear of the friction parts, so the RHX channel is opened to enrich the mixture of the injector, even without pressing the gas pedal driver.

At the time of start, the work algorithm is as follows:

• the key turns, the ignition is turned on;
• the stock is extended until it stops, the needle overlaps the bypass channel;
• at the time of leaving the rod in the calibration hole, the computer counts steps back;
• a voltage is fed to the winding, the valve returns to the open position.

The number of reverse steps is programmed in the firmware of the device. For example, in Basch modifications on a heating engine, it is 50 steps, January - 120 steps, respectively. In total, the rod move is divided into 250 steps, the further it stretched out of the windings of a stepper electric motor, the greater the steps counts the ECU. When buying a new RXX, the distance from the flattening flange to the rod needle should be 23 mm smooth.

Injector

For work injector Engine Clean gasoline is not suitable, so a throttle with an individual sensor of its position at each time is installed at the head inlet. When you start the motor or while stopping the machine with a running engine, the following happens:

1. the computer receives information about the engine shaft turnover;
2. analyzes how the motor works, that is, it clarifies the target purpose;
3. then compares the indications of the sensor of the position of the throttle valve and air, that is, the controller "understands" that the damper is closed, and the depleted mixture arrives in the cylinders;
4. the RXX valve opens, the air is fed to the flap to maintain the revolutions on the programmed level.

In fact, several electronic ignition systems are involved in the process. If the machine stalls or present symptoms of other faults, the diagnosis is performed manually, since the feedback (self-diagnosis) does not have this device.

IN diesel motor There is no throttle, idling regulator is useless, other ways to adjust small revolutions are used.

Constructive features

At the stage of the appearance of DXH, solenoid and rotary idle sensors were operated. They had two positions by analogy with the valve - openly / closed, which reduced the efficiency of engine speed. Currently, they replaced the 4-step valve with stepped feed adjustments by bypass.

If you disassemble the RCH, you can see that it is assembled from four details:

• stepper electric motor;
• rod four-position;
• spring;
• needle.

When the voltage is applied to one of the four windings, the coil is magnetized, interacts with a magnetic ring, moves the rod into one of the four positions. Accordingly, the number of damage to this electrical appliance is as limited as possible:

• bypass channel clogs;
• winding lighting;
• a needle or spring breaks.

The sensor is positioned by manufacturers as "consumable", that is, it is considered conditionally not maintainable. Cheaper replaced entirely than disassemble and repairing separate details. If they are not on sale, you need to pull yourself yourself.

However, the first reason can be eliminated own forces - When the connector is disconnected, remove the regulator to clean the bypass channel by universal spray WD-40.

Place Installation

Knowing the principle of the RCX, determine where the valve is located, is very simple - near the throttle and the sensor of its spatial position of the DPDZ.

The sensor is extremely rarely glued to the damper body on the lacquer, in other cases the device is fixed with two screws for which there are planting holes. The main task, how to adjust when installing the RXX valve with your own hands, is precisely 23 mm from the needle to the landing flange.

Before removing the regulator to replace, you should study marking. Interchangeably considered RHX with marking 01/03 or 02/04. If you put 02 instead of 01 or 03, the device will work incorrectly.

On the idle regulator comes the only harness of four wires from the ECU. Below is the distribution scheme over the windings of the electric motor.

The main problem is the diagnosis of the sensor on its own. It's easy to submit a voltage to test the performance on its terminals will not work, as the ECU makes it impulse. Winding burn very rarely, more often there are mechanical malfunctions, for example, a curved rod or a closed bypass canal.

A hundred sensor is checked on stands capable of reproducing the pulse of the ECU. Even having a multimeter, the car enthusiast can only be convinced of the integrity of the windings and the absence of a closure between them, nothing more.

Signs of failure

The main symptoms of the fact that the idle sensor works incorrectly, are:

• turns in the parking mode are unstable;
• reducing the speed of rotation of the crankshaft when you turn on any consumer (wipers, headlights, air conditioning, radio, heater);
• the lack of increasing the speed of the shaft rotation when the engine is launched;
• stop motor when turning off or switching speeds.

ATTENTION: The specified symptoms are not the cause of the PXX breakage by 100%, as similar to the failure of the DPDZ valve sensor. However, in the last version, Check error lights up, and the regulator idling With the control system of the engine is not associated, self-diagnosis has no.

Diagnosis of RCX

Ideally, the diagnostics of the regulator should be made on a stand that can reproduce the pulses of the side computer. In practice, it is expensive, budget methods of verification are used. In any case, the algorithm of action at the initial stage is the same:

1. delayed hand brake, the wheels are installed anti-digit devices - shoes;
2. disconnect the "-" terminal from the battery of the AKB;
3. knowing where the DPDZ and DMRV sensors are located, the location of the RXH is determined;
4. the valve is disconnected from the onboard computer (pulls out the plug from the connector).

Further steps are different for different test methods.

Manual checking

The simplest method how to check the RHX in electronic system Inlet distribution is manual diagnostics (assistant will need):

1. disconnects the PXX plug from the connector;
2. two screws are unscrewed, the device is dismantled;
3. the regulator is again connected to the ECU, but remains in the hands of the wizard;
4. the assistant turns the engine, the rod at this time should be drawn into the coil completely, then, having received a pulse from the computer, navigate for a while.

In other words, the performance of the rod is checked, the owner is convinced that this item will not bend, does not join inside the valve. However, this does not give 100% guarantees that this modification of the RCX fully corresponds to the firmware of the controller's computer. The needle is put forward, but on an unknown value. In the first case, the connector is checked, in the second - plug, marking is available only on the plug.

With a classic version of the check "from simple to complex" this stage is the initial one, then check the integrity of the wires and coils, the state of the bypass canal, the needle wear. Only after these actions include a homemade stand with a pulsed voltage supply for the complex diagnostics of the PCX.

Diagnosis of multimeter

At this stage, the RXH tester is checked by this device in two modes:

• ommeter - by closing the contacts of the multimeter contacts C - D and A - B, the resistance must have a value of 40-80 Ohm, D - C and A - D to be equal to infinity;
• voltmeter - when inclusion of ignition, the voltage value reaches 12 - 20 V.

ATTENTION: RXC setting is performed automatically. on-board computer After each connection of the plug of the device into the connector. After dismantling, it is recommended to lubricate the bypass channel by the WD-40 spray for cleaning it. This measure is preventive, even in the absence of contamination of the bypass channel, in the break of which is the regulator.

Impulse check on a homemade stand

Since the stand costs 1,500 - 1800 rubles, and the regulator 300 - 500 rubles, the purchase of the device is not economically beneficial to the ordinary user. Simple scheme Without microchips, it is shown below:

• it uses 6 to charging from any mobile device;
• plug pads are available in free sale;
• first you need to turn off the RCH from on-board controller, then checked the stream of the rod;
• the bright light of the lamp in the diagram indicates the malfunction of the stem;
• if the lamp is on the heat in the heat, the node is considered good.

The use of a cleaning agent will allow you to restore the operability of the rod, but only when there are stamps. If this item is bent, you need to replace the entire controller.

Major faults

The above fault signs usually occur in cases:

• scored by mud by the Oblogen channel of the throttle of the throttle;
• violated the integrity of wires or coils;
• the computer firmware does not correspond to the modification of the RXX.

Checking the above methods reveals all causes of malfunction. With each disassembly of the regulator or throttle assembly, it is recommended to clean the RCX with special fluids / sprays.

Cleaning the needle and bypass channel

To provide access to the parts of the valve requires removal of RXH technology:

1. disconnecting the pad from the connector;
2. cleaning the contacts of the connector and the plug with a cotton wand, moistened with WD-40;
3. unscrewing screws with a figured screwdriver;
4. removing the regulator to check the status.

ATTENTION: It is not necessary to disassemble the regulator, it is enough to spire a spring and a rod with a needle of the WD-40 spray, wait for drying, cleaning the choke with the same time.

Adjustment is made by the on-board network controller. However for stable work The engine should be checked the distance from the landing flange to the speaker's needle cone. By default, it must be 23 mm.

Idling sensor nuances

The original idle sensor has a label of the type of XX-XXXXXXX-XX. The last two digits indicate a compatibility mark:

• odd (01 and 03) interchangeable, even (02 and 04) are also interchangeable;
• between themselves these groups are not interchangeable, that is, instead of the "native" 02, the valve 01 or 03 cannot be operated.

Even in the original regulators does not prevent additionally lubricate the RCH mixture of litol and WD-40 (spring and rod). Since the replacement of the RCH is in their own hands in demand by motorists, there are counterfeit regulators that can be identified by signs:

• there are no distinctive marks on the package;
• yellow sticker on the housing without frame;
• the tip of the dark-colored needle;
• thin black sealing ring instead of thick red seal;
• case rivets do not have a hats with a diameter of 3 mm;
• white spring instead of a black product with frequent navive;
• the housing is shorter than 1 mm.

The idling regulator is designed to stabilize the revolutions created by the engine. There is a logical question about whether the presence of this device is so important and necessary? And can also be able to do without it and how to repair the repair in the event of a malfunction. All the operation of the car depends on this device.

In order to understand what work processes is influenced by the idling regulator and why it is necessary to regulate its work, it is necessary to have the concept of what the principles of its work.

Principle of operation

It is very important that fuel and air were in certain ratios. Since with the deviations of one or another indicator, the combustion process will not be perfect or there will be no absent. The main task of the idle regulator is the adjustment of the supply of air at the time of finding in idle mode. The feed occurs not through the throttle, as it opens at the moment of exposure to the gas pedal.

The idling regulator consists of a stepper electric motor, as well as a spring-loaded cone needle. In order to adjust the amount of air during the operation of the car at idle, it is necessary to change the section in the passage channel using the regulator. Simultaneously with the RXX, the work of a special sensor occurs, which makes accounting for the amount of air. In turn, the controller serves fuel.

Probably, most people who are not dedicated to the subtleties of the car, when mentioning the phrase "idling" think that this is the easiest and easiest mode of the car, but this is not so. This mode is for the engine most tedious, since it is very difficult to work with small revs. And it has its own reasons:

The reason for the above processes is the small feed rate of the fuel enriched with air in graduation system. As a result, the mixing reaction occurs in an insufficient level and the level of efficiency is significantly reduced. Of course, when proper adjustment RHX will work for a very long time, but often faults in the operation of this device are not rare. Most often, bad wiring is to blame. The installation of the RHX mechanical sample has deserved quite popular.

Attention! Thanks to the mechanical RRH, a significant reduction in the toxicity of exhaust gases can be achieved.

The most common idle malfunctions

To the possible appearance of malfunctions associated with the operation of the idle regulator, it is necessary to treat with complete seriousness, as they can lead to terrible and not desirable consequences. There are a number of specific features that indicate that there are malfunctions of a idle sensor. These include:

You need to know how you can check the serviceability of the idle sensor, since some signs of breakage may indicate a malfunction of other parts of the car.

Causes of problems

There are many reasons that could lead to this malfunction. You should not lose much time on guesses, but you need to eliminate the malfunction as soon as possible. After all, the long-term operation of the car can lead to more serious problems with the engine. Allocate two, most common, causes of malfunctions:

• wearing a guide needle;
• cut contacts in the middle of the sensor housing.

Checking the health of the regulator

Before starting the process of checking the idle regulator, it is necessary to ensure that the vehicle is installed, that is, tighten the handbrake and put under the wheels of the shoe. Consider the simplest and affordable ways of diagnosing.

The device is covered from the overall electrical chain and voltage checks with a voltmeter. When the ignition is turned on, the resulting voltage should not exceed the standard limits, that is, 20 volts. If the voltage is much lower - a malfunction with the charging of the battery, if any - it is worth checking the entire chain.

Check the resistance level. It should not exceed 53 Ohm.

Attention! If the work of the idle regulator is perfect, the voltage indicator will be very high.

If you turn on the ignition and attach a power block to the idling regulator, the sensor needle must change its position if not, then this indicates a malfunction.

It is possible that the main fault is in the most pCH work. With certain skills and knowledge, it is possible to replace the defective idle regulator yourself, without the help of car service workers.

Replacing the regulator

In order to adjust the idling regulator in carburetor-type vehicles, there are special screws that allow you to replace manually. But there will be additional devices such as a tachometer and gas analyzer. In general, the process of replacing the idling regulator on these vehicles is characterized by a certain complexity.

But on vehicles A new sample this procedure can be made much easier and faster. True, it will be necessary to steadily follow some advice and recommendations:

There is one small but important nuance that concerns the repair of the idle regulator. It simply not provided. Some faults can be eliminated by surface processing special chemicals. For example, WD-40 or a carburetor cleaning agent.

Important! All cleaning procedures must be made as accurately as possible so as not to damage the device.

Acquisition of the regulator

The unit, in which the needle vibration does not feel, is not subject to repair. In this case, so as not to spend time on meaningless resuscitation effort, you just need to get rid of it. To purchase a new sensor do not need to spend huge cash.

Tip! Most. optimal option Relative price and quality sensors are considered domestic production.

In specialized stores, sellers consultants will help determine the selection of the sensor. If there are doubts about a new type of device, then it is best to bring the old sensor as a sample and to purchase exactly such a model.

It is very important to buy an original device, and not a cheap fake. It is worth paying attention to all the inscriptions and holograms on the package. If there are errors in writing words or other suspicious moments, it is better to visit another store and choose a device that does not cause doubt.

Purchase is best done in proven places. For large guarantees, you can check the availability of quality certificates for the specified unit. Also do not forget about the check. It must always be taken, because it is your guarantee.

In the case when the vehicle is noticed in idle mode, disorders are not characteristic of the engine, such as a sharp change of revolutions, it is necessary to diagnose in order to identify the cause of these violations of work. If you do not detect and not eliminate the problem on time, then the situation can be aggravated. Do not hope for a shortage of time for repair work, because it does not take it a lot.

The replacement of the idle sensor is shown on the example of the car VAZ 21103: