How to adapt the throttle body in a car. Electronic gas pedal - how to fix the "assistant"? Learning the electronic gas pedal vaz 2115

How to adapt the throttle body in a car. Electronic gas pedal - how to fix the "assistant"? Learning the electronic gas pedal vaz 2115

29.06.2020

New Nissan vehicles are equipped with electronic throttles. From the electronic throttle depends on the air supply necessary for optimal operation of the motor. Also, the electronic throttle regulates idling and warm-up speed of the motor. Usually, after removing the battery terminal, or some kind of repair associated with disconnecting the engine wiring or flushing, cleaning the electronic throttle, or with a breakdown of the engine injection control system, problems associated with idle speed appear.

The engine speed starts to float, the engine does not work stably at idle, while the car can drive, it will start. Often, owners of such Nissans or repairmen may think that there is a malfunction behind this - some kind of breakdown, defect, or something incorrectly assembled. But in fact there is no malfunction, and all the components of the car are assembled correctly. The whole problem lies in the failure of the electronics, namely the need to teach the throttle to work properly and idle. The learning procedure itself does not require any equipment and the adaptation (learning) of the throttle on a Nissan is available to anyone. But in the procedure itself, the accuracy of all points must be observed. But even the availability of information about the learning process does not make the procedure simple. Diagnostic equipment, with throttle mismatch and with an increase in idle speed at the motor, does not reveal any defects. And very often, even repairmen cannot explain the reason for the sudden increase in idle speed. After proper training, the motor operates in the range of 700-800 rpm. The electronic throttle is very sensitive to dirt deposits and resins that are deposited on it during the operation of the machine. Because of this, the idle speed of the motor begins to float or hang. And also the response of the motor to the gas pedal during acceleration is less sensitive. Therefore, cleaning the throttle is a must. But if the throttle is very dirty, after cleaning it, the throttle mismatch occurs - and as a result, floating and incorrect revolutions. It is impossible not to clean the throttle - in the end the motor will not work correctly. If you have the opportunity, clean the electronic throttle in time - once every 15,000 km. If for some reason you removed the connector from the electronic throttle, from the battery, or from the Nissan engine control unit, you will have to carry out the throttle adaptation procedure.

Training procedure

1. First we must teach the released position of the accelerator pedal.

2. Make sure the accelerator pedal is fully released.

3. Turn the ignition to the ON position and wait at least 2 seconds

5. Turn the ignition to the ON position and wait at least 2 seconds

6. Turn the ignition key to the OFF position and wait at least 10 seconds

7. End

Throttle closed learning

1. Make sure the accelerator pedal is fully released.

2. Turn the ignition to the ON position

3. And immediately turn the ignition key to the OFF position and wait at least 10 seconds, during this time the damper will move.

Teaching air supply at idle speed

1. The engine and gearbox must be warmed up to operating temperature

2. All consumers of electricity are turned off

3. Start the engine and warm it up to operating temperature

4. Turn the ignition key to the OFF position and wait at least 10 seconds

5. Make sure the accelerator pedal is fully released.

6. Turn the ignition to the ON position and wait at least 3 seconds

7. Quickly within 5 seconds - fully depress and release the accelerator pedal 5 times

8. Wait 7 seconds

9. Fully depress the accelerator pedal for about 20 seconds until the CHECK indicator stops flashing and stays on

10. Fully release the accelerator pedal within 3 seconds when the CHECK indicator lights up constantly

11. Start the engine and let it run at idle

12. Wait 20 seconds

13. Press the gas pedal 2-3 times and make sure that XX is normal

All procedures must be carried out exactly on time, the main thing is not too early to press the gas pedal and press and release it quickly.

Read 23432 once

Often our car service is visited by GAZelle cars, because this is a commercial vehicle that plows day and night like a workhorse. Every day, a lot of GAZelleks enter the roads of our country and sooner or later certain breakdowns occur, which we try to eliminate! Today is no exception. A GAZelle Business with an UMZ engine came to our repair shop! Well, let's help the business!

After listening to the client: the car does not pull, the check light is on. After you turn the ignition off and on again, the machine sometimes starts to work as it should, but then the problem repeats. RPMs don't rise above 2000.

Here it is, the workhorse!

Fig.1

Where to start the repair? Of course with computer diagnostics. We connect diagnostic equipment and read the errors that are registered in the engine control unit.

Fig.2

We are interested in the current error P2138 Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation. What does she mean? This error literally stands for: P2138 incorrect voltage ratio "D" / "E" throttle position sensor or accelerator pedal. The throttle valve is electronic, as is the gas pedal. That is, both the damper itself and the pedal may be faulty. In order to defect a pedal or throttle valve, you need to understand how they are arranged, so first we will consider their design features, device and figure out what is the difference between a mechanical throttle valve and an electronic one.

The principle of operation of the system with electronic throttle and electronic gas pedal.

And so, at the beginning, we will consider the mechanical throttle device and figure out how the idle speed is adjusted.

Fig.3 Mechanical throttle valve (rpm 840..900)


In a mechanical throttle valve (Fig. 3), the idle speed control (4) is responsible for idling (engine speed). The throttle valve itself (penny 1) does not participate in any way in adjusting the idle speed. The idle speed controller sets 55 ... 65 steps (mikas 7.1) to maintain speed in the region of 800 ... 900 rpm. The more steps of the idle speed controller, the higher the engine speed will be, because. more air will pass through the bypass channel (3).

Fig.4 Mechanical throttle valve (rpm 1300..1400)

To maintain the idle speed at 1300...1400, the idle speed controller (2) sets approximately 115...120 steps (mikas 7.1). The regulator rod (4) in this position increases the air flow passing through the bypass channel (3), thereby increasing the speed.

But how does the idle speed adjustment with electronic throttle work, and what parts does it consist of?
The electronic throttle valve GAZ consists of the following parts (Fig. 5): the damper itself (penny 1), the motor reducer (2) that controls the damper (penny 1), and two resistive position sensors (3)

Fig.5 Electronic throttle (rpm 850..900)

Let's clarify that in cars with electronic throttle there is no idle speed controller as a separate part. The throttle valve itself is responsible for adjusting the idle speed (penny, 1). To maintain idle speed, the throttle valve opens slightly by 5 ... 6% and the air that is needed to maintain idle speed passes through the damper itself (1). The damper is controlled by a motor reducer (2). Sensors (3) read the current damper position.

Fig.6 Electronic throttle (rpm 1400..1500)

In order for the engine speed to increase to 1400....1500, the motor (2) slightly opens the throttle by 10...12%. Thus, the electronic damper itself participates in the process of adjusting the idle speed. The electronic throttle must be kept clean, so in order to keep the engine speed from floating, it must be cleaned much more often than a mechanical valve.

If the mechanical throttle is controlled by a throttle cable, then who is responsible for controlling the electronic throttle? In order for the control unit to understand at what angle to open the throttle, it must first read the current position of the gas pedal. Our gas pedal is also electronic and consists of the pedal itself and two resistive sensors (R3, R4) Fig.7.

Consider Option 1. The gas pedal is not pressed.
Ignition on, gas pedal not pressed, throttle turned 7.8%, why not 0% you ask? We explain: because we have an electronic throttle, then the idle speed controller, as you already understood, is absent, but we need air to ignite the mixture. It is precisely through a gap of 7.8% that this air enters during engine start.

Fig.7 The ignition is on, the pedal is not pressed, the damper is closed (ajar) by 7.8%.

What parameters can we observe with a working throttle and a working gas pedal?

Fig.8 Typical parameters for the values ​​​​of a serviceable gas pedal and throttle valve (pedal not depressed)

Table 1. Indications of a serviceable gas pedal and throttle valve (pedal not pressed)


R3 ADC_DPS 1 (IN) 0.97 , R4 ADC_DPS 2 (IN) 0.49.
To check the correctness of the readings, you need to know the following:
readings R3 (ADC_DPS 1 (IN) 0.97 ) exactly 2 times more readings
R4 (ADC_DPS 2 (IN) 0.49 ).
We have R3(ADC_DPS 1 (IN) 0.97 ) / 2 = 0.485 (0.49), which corresponds to the value of R4 ( 0.49 V)

0.78 , R2 ADC_ETS2(V) 4.22.
5 volt. We have R1(0.78) + R2(4.22) = 5 volts. This means that in the ignition on position (pedal not depressed) the throttle serviceable.

Consider Option 2. The gas pedal is pressed all the way down.
The ignition is on, the gas pedal is pressed all the way down, the throttle is turned 24%. Why not 100% you ask? Well, that's how it's programmed by the manufacturer.

Fig.9 The ignition is on, the gas pedal is pressed all the way down, the damper is open by 24%.

On the computer screen with the gas pedal pressed, we observe the following parameters.

Fig.10 Typical parameters for the values ​​​​of a serviceable gas pedal and throttle
dampers (pedal fully depressed).

Table 2. Indications of a serviceable gas pedal and throttle valve (the pedal is pressed all the way).

The gas pedal readings (highlighted in yellow) are the parameters:
ADC_DPS 1 (IN) 3.67 ,ADC_DPS 2 (IN) 1.84.
To check the readings, as we have already said, we divide R3 (ADC_DPS 1 (IN) 3.67 ) by 2 and we get 1.835 (1.84), which corresponds to R4 ADC_DPS 2 (IN) 1.84.
This means that when the gas pedal is in the floor, our gas pedal shows the correct values, which means it is working.

Throttle readings (highlighted in red) are parameters: ADC_ETS1(V) 1.42 , ADC_ETS2(V) 3.58
In sum, the voltage R1 + R2 of the throttle position sensors must correspond to 5 volt. We have R1(1.42) + R2(3.58) = 5 volts. This means that in the ignition on position (the gas pedal is pressed to the floor), the throttle valve shows the correct values, which means serviceable.

And so, we considered the options for the operation of the throttle and gas pedal, provided that they are fully operational, but back to our GAZELLE and the error P2138, which is written to the ECU memory when one of the values ​​does not match, we recall these values.

Correct gas pedal: the voltage R3 of the gas pedal divided by 2 is equal to R4, i.e. R3/2 = R4.
Correct throttle body: the sum of the voltages R1 and R2 of the throttle valve is 5V, i.e. R1+R2= 5v.

If one of these conditions is not met, then the error P2138 appears - incorrect voltage ratio "D" / "E" throttle position sensor or accelerator pedal. D and E in our case are R1, R2 and R3, R4, respectively. Therefore, in order to reject the gas pedal or electronic damper, the above checks must be carried out. Without wasting time, we begin to check our readings on a faulty car.

Checking the throttle and gas pedal readings of a faulty GAZelle car.

To begin with, we look at the throttle and gas pedal voltage readings on a muffled car with the ignition on. And what do we see?

Fig.11 The ignition is on, the pedal is not pressed.

Table 3. Indications of a defective gas pedal (pedal not pressed)


R3 ADC_DPS 1 (IN) 0.98 , R4 ADC_DPS 2 (IN) 3.75.
To troubleshoot, you need to know the following:
R3 readings are exactly 2 times greater than R4 readings for a working gas pedal.
We have R3(ADC_DPS 1 (IN) 0.98 ) / 2 = 0.49 (0.49), which is inconsistent with the value of R4 ( 3.75 V). This means that our gas carrion shows "garbage" - pedal is defective.

Throttle readings (highlighted in red) are the parameters: R1 ADC_ETS1 (V) 0.78 , R2 ADC_ETS2(V) 4.22.
In sum, the voltage R1 + R2 of the throttle position sensors must correspond to 5 volts at the correct throttle.
We have R1(0.78) + R2(4.22) = 5 volts. This means that in the ignition on position (pedal not depressed) the throttle serviceable.

Fig.12 Ignition on, pedal not depressed (pedal fully depressed).

Table 4. Indications of a defective gas pedal (the pedal is pressed all the way down).

Indications of a defective gas pedal (highlighted in yellow) are the parameters:
R3 ADC_DPS 1 (IN) 3.72 , R4 ADC_DPS 2 (IN) 4.13.
We check:
R3(ADC_DPS 1 (IN) 3.72 ) / 2 = 1.86, which is inconsistent with the value of R4 ( 4.13 V). This means that the gas carrion, just like in the first case, shows "garbage" - pedal is defective.

Throttle readings (highlighted in red) are the parameters: R1 ADC_ETS1 (V) 0.80 , R2 ADC_ETS2(V) 4.21.
We check:
R1(0.80) + R2(4.21) = 5.01 volts. This means that in the ignition on position (the pedal is fully depressed), the throttle serviceable.

Pay attention to the percentage of throttle opening on pic 12. provided that the gas pedal is pressed all the way down. Due to a faulty accelerator pedal, the ECU cannot detect that the accelerator pedal is depressed and therefore the damper opening percentage will remain around 7.1%. If the gas pedal were in good order, then the readings should correspond pic 10.

Well, we have defected the electronic gas pedal. Let's start dismantling it, disassemble it and find out what happened to it.

To disassemble the electronic gas pedal, you need to unscrew the four screws.

Rice. 15. Loosen 4 screws.

Fig.16. Remove the top cover with the board and resistors.

Here is the wiring diagram for our pedal.

Rice. 17. Accelerator pedal connection diagram with ECU.

How is the connector on our gas pedal numbered?

1. red supply +5 volt sensor 2 pedals
2. brown-orange power +5 volt sensor 1 pedal
3. brown pink pedal sensor 1 signal
4. brown common sensor 1 pedal
5. red-pink common sensor 2 pedals
6. brown green sensor signal 2 pedals

Rice. 18. Pinout of the gas pedal contacts.

Fig.19. Accelerator pedal sensor board

On Figure 19 you can see a shiny (striped) area (highlighted in green) on the resistive layer, from the fact that the gas pedal slider is constantly moving forward and backward. Over time, this layer is strongly rubbed and the resistance of the coating becomes different, and then miracles begin.

Modern technology has now touched almost all parts of the car. If earlier the gas pedal drive was exclusively mechanical, now it is being replaced by an electronic one. In this article, you will learn what an electronic gas pedal is, how it works, how it is adjusted and repaired.

Device and principle of operation

To understand how the electronic gas pedal works, you need to know the general principle of the accelerator. The fact is that their functions are extremely similar, but the simplest mechanism is precisely the mechanical drive.

The accelerator pedal, or as it is commonly called - "gas", is a means of controlling the throttle position.

The throttle valve, in turn, is responsible for the amount of air supplied to the engine intake manifold. The more oxygen enters the combustion chamber, the higher the crankshaft speed. The pedal is a lever that acts on the damper actuator. The drive can be cable or lever. All this, one way or another, facilitates the effort applied to press the gas pedal.

The principle of operation of the electronic pedal is a bit complicated, but it makes it much easier to control the engine speed. Such a pedal is used only on injection cars, as it is completely based on the operation of electronic devices. The accelerator includes: pedal module, signal conversion module and throttle position control unit.

When you press the pedal, the module transmits information about the angle of deflection of the lever to the signal conversion module. The transistor system sends an amplified signal to the throttle control unit. After matching the received signal with the electronic control unit, the throttle valve module determines the angle of its opening. Thus, an electronic method of opening the throttle valve is provided.

It is worth noting that the operation of the damper module cannot begin until permission is received from the ECU. The fact is that this system must know exactly how much air and fuel the engine needs in a given mode of operation. Therefore, the position of the damper can change regardless of how much the accelerator pedal is depressed.

How to adjust the electronic pedal

Like any mechanism, the electronic gas pedal sometimes also needs to be adjusted. This event is necessary to maintain the normal operation of the accelerator in case the settings have been lost.

Sometimes it happens that when you press the gas pedal, the car stops responding to a change in throttle position. This is due to the fact that there was simply no change in the situation. All electronic pedals have a certain free play, during which the voltage supplied to the transistor circuit changes. If the voltage changes, then the reaction to the position of the pedal also changes, therefore, the car may not behave adequately at. Sometimes this problem can be recognized by the corresponding indicator on the dashboard or by using electronic diagnostics carried out through the vehicle's on-board computer.

Adjustment procedure:

  • First of all, you need to remove the pedal from the seat. This means that when the pedal is removed, the angle measurement module is also dismantled with it. The plug connector must be left in place, as power to the pedal will be needed during the adjustment process.
  • Once the pedal is released, unscrew the screw located on its cover. Thus, you need to release the cover relative to the pedal, allowing it to rotate freely. Next, you'll need the reference literature that came with the pedal.
  • Connect a voltmeter between the connectors and set it to the appropriate measurement range. Turn on the ignition. The manual for the pedal has voltage standards that will be different for a diesel and injection engine. By turning the pedal cover, you can change the input voltage. Adjust this setting according to the documentation and tighten the fastening screw.
  • Install the pedal in place and try it out. If the behavior of the car has changed for the better, then the adjustment of the electronic gas pedal has been carried out correctly.

Attention! Reference literature may indicate the voltage range. Two numbers determine the amount of tension when the pedal is not depressed and fully depressed. Therefore, the adjustment is made according to the first voltage with the gas pedal not depressed.

In addition, the voltage value may vary depending on the environment. That is, during seasonal maintenance of the car, it is also strongly recommended to adjust the gas pedals, since this value can change, inversely proportional to the changing resistance.

Video - Converting an electronic gas pedal into a mechanical one

Repair of the accelerator with an electronic drive is carried out on the basis of detected faults. Like all parts, such a system also has a certain amount of wear, the occurrence of which cannot be prevented. In this regard, it is important to know how to troubleshoot when the electronic gas pedal breaks down.

Usually, the repair of the pedal is started when the following malfunctions are detected: there is a short-term failure of the reaction to a change in the position of the pedal or a complete failure of the pedal, regardless of the angle of depression. Basically, these malfunctions are associated with a lack of power to the executive bodies, or the absence of a signal from the pedal module.

First of all, it is necessary to inspect the electrical wiring for spillage, damage to the insulation (short circuits) and lack of contact in plug connections. Very often, due to the fault of the wires, power is lost on the responsible organs and the pedal simply refuses to work. If defective electrical conductors are found, they must be replaced immediately.

Another malfunction is related to breakdown. This error is displayed in the form of a special code "022", or, as it is also called, "throttle failure". In this case, the motor must be checked. To do this, it is dismantled and connected to a source of electrical energy directly in accordance with the rated current and voltage. If the motor rotates, then the fault must be sought elsewhere, although such cases are rare. If the motor does not rotate, then it must be replaced.

All other malfunctions are eliminated by replacing the entire module, since their repair is rather complicated and impractical. In fact, it is easier and cheaper to replace the entire part than to repair it.

This is everything the driver needs to know about the electronic throttle control pedal. We hope that this article has helped you understand this complex and confusing mechanism.

Sometimes the engine fails, and its speed is knocked out of the set values. As a result, the idle speed becomes unstable, dips in power occur.

It seems that the engine, any minute, will stall. This is explained by the wear of the part, and as a result, an increase in the gap between the throttle body and the damper. A broken gap allows air to pass more than normal, and this is the reason for a change in the composition of the fuel mixture.

The result is engine failure. When the damper (penny) is worn out, it becomes necessary to replace it. Due to the simplicity of the design, it will not be difficult to order it from a familiar turner or find it on the Internet from some “Kulibin”. The price of the purchased part will be much higher.

Since new car models already come with electronic throttle control (electronic pedal), malfunctions in the electrical equipment of the car can also lead to an error in operation.

A sudden power surge in the car network, removal / replacement of the electronic control unit, accelerator pedal - all this can cause a malfunction of this part of your car. Then there is a need to return all parameters to normal.

Examples of throttle adaptation on VAG and Lancer IX vehicles

In this video, you will be told and shown how to adapt the damper for a VAG car.

Adaptation of remote sensing for Volkswagen Golf 4:

  • We warm up the engine to t=80 0 C and turn off the car. Then we connect the USB-KKL cable to the diagnostic connector and after turning on the ignition we start the diagnostic program (VAG-COM 3.11).
  • We enter section 01-engine.
  • We poll the fault memory (02).
  • Detected faults are erased (05).
  • After returning to the previous menu, we enter the "adaptation-10" section.
  • With the value of group 001, press "start".
  • We wait 2-3 minutes, then close the program and disconnect the cable. Adaptation completed.

Adaptation of the remote control of Nissan cars with an electronic gas pedal:

  • Turn on the ignition for at least 2 seconds.
  • We turn off the ignition. The accelerator pedal adaptation procedure is complete.
  • We carry out the adaptation of the throttle valve. Accelerator pedal released.
  • We turn on the ignition and immediately turn it off. We expect at least 10 seconds. During this period of time, the damper moves.
  • We teach the air supply at idle (XX).
  • We warm up the engine and gearbox to operating temperature.
  • Turn off all electrical equipment in the car.
  • We start the engine and bring it to operating temperature.
  • Turn off the ignition and wait at least 10 seconds.
  • Fully release the accelerator pedal.
  • Turn on the ignition and wait at least 3 seconds.
  • Within 5 seconds, we press the accelerator pedal five times, after which we wait 7 seconds.
  • Pressing the accelerator pedal, hold it until the CHECK stops flashing and lights up constantly (it takes about 20 seconds).
  • After the CHEK lights up constantly, within 3 seconds it is necessary to release the pedal.
  • We start the engine to work on XX.
  • We press the pedal several times to check the stability of the XX.

Adaptation of remote sensing on VW Passat B5:

  • We warm up the engine to operating temperature and turn off the car.
  • We turn on the ignition, but the engine does not start.
  • We connect the cable to the diagnostic connector and run the program.
  • We enter section 01-engine.
  • We enter the basic settings (04).
  • We select in the damper adaptation - 060 for vehicles with electronic damper control, and the value 098 for vehicles with cable-operated damper adjustment.
  • We start adaptation.
  • We are waiting for the entry on the screen "ADP RUN" and the subsequent entry "ADP OK".
  • We return to the basic settings.
  • We turn off the ignition. Adaptation completed.

Mitsubishi Lancer IX Throttle Adaptation:

  • We warm up the car engine.
  • We connect the ScanDoc scanner to the diagnostic connector. IAC values ​​\u003d 0.
  • We artificially restore the thermal gap in the damper (for example, we use a mixture of grease with oil waste).
  • We start the engine and wait for the installation of stable revolutions of the twentieth.
  • In the scanner, we launch the Sas mode and adjust the IAC position during adaptation.
  • If the engine stalls when the “Sas mode” is turned on, then unscrew the IAC screw to increase the engine speed by XX;
  • We set the speed in the range of 750-800 rpm.
  • During adaptation, the IAC steps are set to 4-7;
  • Forcibly complete the adaptation process and turn off the engine.
  • We start the engine and check the IAC. If the adaptation was successful, then the IAC steps will be equal to 27-28.

Adaptation of remote sensing on the Audi A4:

  • We warm up the engine to t=80 0 C and turn off the car. Then we connect the cable to the diagnostic connector and after turning on the ignition we start the diagnostic program (VAG-COM).
  • We enter section 01-engine.
  • We enter the section "adaptation-10".
  • On channel 00, press the "read" button.
  • We save the result and return to the factory settings.
  • Enter the basic settings (04) and go to the measurement mode.
  • We enter the value of channel 098, the start of adaptation.
  • We are waiting for a message about the completion of the adaptation process.
  • We return to the original section. Close the program and disconnect the cable.

. Our site will tell you how to do everything right.

You can find out how to install car sound with your own hands. We advise everyone!

From this, you will find out how much anti-corrosion treatment of the bottom of a car costs.

When is it not necessary to perform the adaptation of the remote control?

It is worth noting that it is appropriate to carry out the above procedures using software and special diagnostic equipment in case of failure of the damper settings. It does not matter if the electronic parameters are violated or the mechanical settings of the equipment are lost.

If the operation of the throttle is impaired due to wear, then it is more advisable to think about repairing or replacing the part. If suddenly, after the above steps, adaptation does not occur, it is worth checking the motor responsible for opening / closing the damper. There may not be enough power for the node to work properly.

Using the example of adapting the throttle valve of the above cars, we can conclude that absolutely all cars are characterized by some common processes.

So, for example, cleaning the damper body inside and out before starting adaptation is necessary for any brand of car.

The only difference is that in some cars the damper is adjusted using a cable, while in others it is done electronically. This difference will manifest itself in the choice of adaptation parameters.

How does an electronic gas pedal work, how do its advantages and disadvantages manifest itself, what malfunctions are most common, and how to deal with them? All these questions are very relevant, because today many car manufacturers have replaced the traditional cable drive with a more modern electronic pedal.

Electronic gas pedal - how does it work?

Modern technologies are aimed at making our lives as easy as possible. On the one hand, this is a huge plus, but on the other hand, they simply deprive us of the opportunity to make any decision, or rather, correct it, and in such a way that it is not always possible to achieve the desired result. This is clearly seen in the operation of the electronic pedal, which is so popular in modern automotive industry. Although for those who feel insecure behind the wheel, and even more so do not delve into the technical nuances of the car, this innovation is only a plus.

The principle of operation of the electronic gas pedal is as follows: after the driver presses the accelerator, data on the pressure angles immediately enter the control unit through special sensors. Next comes the move ECU, which calculates the required opening angle, and the drive, based on the data received, opens it to this angle. Moreover, if it is suddenly necessary to change the value of this angle (for a more economical mode or for safety), then the control unit does this itself, without receiving the appropriate command. It turns out that the driver cannot 100% regulate this process.

When do you need to replace the electronic gas pedal?

Due to the fact that this is an electronic drive, the main malfunctions in it are associated with electronics. Two sensors are built into the pedal bracket, which transmit commands to the control unit. If one of these sensors fails, then the light on the panel will light up, which is responsible for the health of the engine control system. In this case, the ECU goes into standby mode (revs increase much more slowly). If two sensors fail, then the emergency mode will turn on, and the engine will work as on. Since the sensors cannot be repaired, the electronic gas pedal must be replaced.

The wiring may also be damaged, and then the operation of the throttle is disrupted. If the electric engine is worn out, then an error is also displayed on the monitor indicating an accident. These damages can be repaired, but if the accelerator of the electronic gas pedal, which is responsible for the dynamics of the car, is out of order, then this part should be immediately replaced with a new one. How to do this, we will consider a little lower.

Repair of the electronic gas pedal - we fix the breakdowns ourselves

Basically, in case of any problems, the replacement of the entire assembly as a whole is required. But before embarking on such decisive action, it would not hurt to find out the cause of the breakdown. To do this, of course, you should read the information on how to check the electronic gas pedal. To do this, it is necessary to disconnect the block and sensors, and then, unscrewing the fixing nuts, dismantle the pedal.

Directly for verification, you will need a multimeter: by connecting it to different terminals, we monitor the change in electrical resistance. It should decrease smoothly, but if jumps are observed, then the part is faulty.

In some cases, it is also possible to repair the electronic gas pedal, for example, if the wiring is damaged. So, having discovered a defect (the insulation is broken, the wires themselves are damaged, etc.), you need to act according to the following scheme. Having freed the axis of fastening of the gear, remove the harness. To do this, unsolder the wires, release the bracket and pull out the cable. Then we replace the wires, and, having disassembled the connector under the pedal, we solder them. Now you can assemble the damper and drive safely.

If the car reacts to pressing the accelerator, so to speak, “with a delay”, then a spur (electronic corrector) of the gas pedal is needed. This device allows you to reduce the interval between pressing and opening the damper to a minimum. This is a separate module that connects to the sensors and converts the signals from them through the microprocessor, and then feeds them to the controller.

So we see that the electronic gas pedal, tuning of which is possible in any specialized center, on the one hand, is a clear result of progress, and on the other, it somewhat limits our desires. True, if you do not belong to the category of those people who need to “ride with the breeze”, but prefer to drive carefully with minimal fuel consumption, then this option will be just for you.



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