Trouble P0101 - Mass Air Flow Sensor Range/Performance

Causes of error P0101

• The mass air flow sensor sends a signal to the engine control module (ECM) that is out of range.
• The mass air flow sensor is not functioning properly due to damage or malfunction.
• Electrical wires or the MAF sensor itself are located too close to higher voltage components (such as the alternator, ignition wires, etc.) which can cause interference that affects the signal sent to the vehicle's ECM.
• The problem could also be damaged vacuum hoses, which can lead to various problems and other error codes.
• The MAF sensor must operate within a certain range to be able to send the correct signals to the vehicle's ECM, which is necessary for proper engine operation.

Tips to Avoid P0101 in the Future

Dirt and carbon deposits in the engine can cause many problems, including trouble code P0101. Check the air filter regularly and make sure it is installed correctly when replacing it. Regular maintenance of your engine fluids, especially oil, will also help keep your engine clean.

This code can also be caused by worn wire insulation. Make sure all wires are kept away from ignition coils and other potential sources of damage.

Previous Post Trouble P0325 - Knock Sensor Circuit Malfunction (Bank 1)

Next Post Trouble P0100 - Mass Air Flow Sensor Circuit Malfunction

How does a mechanic diagnose a P0101 code?

When diagnosing this error, the mechanic will do the following:

• Connects the OBD-II scanner to the vehicle's diagnostic connector and reads all stored data and error codes
• Visually inspect the engine, then clear the fault codes from the computer's memory and test drive the vehicle to see if P0101 appears again.

If the error code appears again:

• Check the electrical connector of the mass air flow sensor for looseness.
• Check the electrical wires related to the mass air flow sensor for damage
• Find out if electrical wires or the MAF sensor itself are located too close to higher voltage components

What are the symptoms of a P0122 code?

• When this error appears, the Check Engine light will light up on the vehicle's dashboard. The ECM will put the engine into limp mode and stop current flowing to the throttle actuator. In this case, the opening angle of the throttle valve will be no more than 6 degrees.
• Problems may arise with the control of fuel injection and ignition timing.
• There may be a decrease in power as well as engine sensitivity to throttle opening.
• The engine may idle at higher speeds, but the vehicle will not accelerate as expected.

Note : Symptoms of this error may vary depending on the make and model of your vehicle.

Common mistakes when diagnosing code P0101

• The most common mistake when diagnosing a P0101 code is to hastily replace the MAF sensor without first checking the associated electrical wires and connector for damage.
• It is also a mistake to neglect to check the mass air flow sensor for excessive carbon buildup before replacing it. Sometimes the problem can be solved by cleaning the sensor using a special cleaner designed for mass air flow sensors.
• Another mistake is neglecting to check the vacuum hoses for wear and damage.

Additional comments for troubleshooting P0122

• Along with the P0122 code, there may also be other error codes related to the throttle position sensor that need to be investigated and resolved.
• The most common cause of P0122 is a faulty throttle position sensor or a loose sensor connector.
• As a rule, when errors related to the throttle position sensor appear, emergency mode is activated, and the symptoms of such errors are almost the same.

How serious is P0101?

• When the P0101 error code appears, there are usually no serious problems with the vehicle's drivability, however, if this code is detected, it is recommended that you contact a qualified technician as soon as possible to diagnose and repair the error.
• Under certain circumstances, damage or failure of the mass air flow sensor can lead to increased fuel consumption, unstable engine operation, and problems starting the engine. In some cases, damage to internal engine components may occur.
• Often, if the Check Engine Light comes on immediately after starting the engine, the OBD-II system can be reset and the vehicle will continue to operate normally.

Decoding Kalina fault codes

The on-board computer has an option that allows you to independently diagnose the systems and find certain faults. When performing an operation, faults encrypted in two-digit codes are displayed on the dashboard.

The following is a breakdown of popular faults encountered when performing repair work on a machine.

Error 3

The power supply to the fuel level meter in the tank is broken or the float itself is damaged. Check lines for damage.

Error 4 on Kalina

If this number is displayed on the instrument panel, it means that there is a problem in the coolant temperature sensor line. This happens for a trivial reason - oxidation of wiring contacts.

Error 5

The on-board thermometer is faulty. The cause may be a loose terminal.

Fault 6

The engine has overheated, the sound indicator is working. You should stop and let the engine cool.

Problem 7: solution to the problem

The pressure inside the engine oil lines has gone beyond the set threshold. Pay attention to the system status.

Fault 8: Kalina 8 valves

The pressure in the brake system has dropped. This indicates a breakdown in the line or a jammed brake.

Code 9

The battery is dead. Check the charging relay and battery wear.

Code 17: EUR Kalina

The module requires more thorough diagnostics. There is a problem with the wiring.

Code 34: problem solving

Critical malfunction of the mass air flow sensor.

Code 45

Incorrect data from the fuel level in the gas tank. You need to check the line.

Code 78

The error indicates the need for more thorough diagnostics of the vehicle. The code is often a glitch of the on-board computer.

Code 89

A standard cipher that combines two problems 8 and 9. When they appear, they need to be solved.

Code 234

Internal dashboard error. It is recommended to reset the encryption and continue operation.

Code 345

Standard ECU problem, requires more thorough diagnostics.

Code 456

This code represents an error directly from the dashboard. It is this module that needs to be checked.

Code 789

A set of three problems. The faults are listed in order.

Code 3456

Description of several problems at the same time, errors are listed in ascending order.

C1011 - malfunction

Insufficient quality of wiring contact in the power steering system. It is necessary to check the terminals for damage.

C1044 - Kalina breakdown, incorrect DPR sequence

Incorrect sequence of signals from the EUR rotor sensor. Error 1044 can be solved by replacing the sensor.

EUR failure - error C1642

Check the condition of the device's head module. There is a problem with transmitting and receiving information from sensors.

U0100 - error Kalina 2 automatic

Communication with the ECU is lost. Check the wiring for damage.

Code U3110

The diagnostic connector is faulty. The CAN bus requires diagnostics.

Code B1018

An emergency reset of the control unit has occurred. Perform a thorough system diagnostic.

B1030 - malfunction

This indicates that the oxygen sensor upstream of the converter is not working correctly. The problem is resolved by replacing the module or restoring the wiring.

Code 0030

DK1 – open circuit of the heater. It is necessary to restore the power lines.

P0036 - VAZ Kalina code

The signal indicates incorrect operation of DC1. Most likely the sensor is damaged.

Code 007

Represents the BC firmware version. There are no mistakes here.

Kalina 2: error code 009 219220

The pointer displays the instrument panel part number. The encoding does not indicate any problems.

Code P0101

The wrong signal is coming from the mass air flow sensor. The main reasons for this are the installation of HBO. The system does not understand what is happening with the power plant.

Code P0102

Error 0102 or 102 indicates that the signal from the mass air flow sensor is too low. You need to check the sensor and signal wires.

Error P0122

TPS A – incorrect signal level.

Error P0130

Here we recommend a complete replacement of the first oxygen sensor. Code 0130 indicates that there are problems with the Lambda probe.

Code P0131

The signal level from DC1 is too low. The formation of the fuel mixture does not occur correctly.

P0113 - code

The intake air temperature sensor has completely failed or is severely malfunctioning.

Code P0117

The voltage in the DTOZ is too low. You need to check the wiring for the presence of oxides.

Code P0118

The opposite meaning of the above error. The solution to the problem is similar.

Code P0122

TPS A – incorrect signal value. The throttle body needs to be cleaned of contaminants.

Error P0131

Incorrect fuel mixture ratio. The throttle and fuel mixing system need adjustment.

Code 0132

The voltage on DC1 is too high. This is usually the cause of a signal wire shorting to ground on another system.

Code P0134

Loss of signal from DC1. The wiring may be broken or the sensor itself may be faulty.

Code P0140

A frozen Lambda probe has been detected. This usually happens due to critical wear and tear of the system.

Code p0141

The oxygen sensor takes too long to warm up.

Code P0171

Loss of tightness of the intake tract of the bank of the first head. It may also indicate that there are intake problems.

Code P0172

Excessively rich fuel mixture. You need to check the air filter - the element is most likely clogged.

Code P0222

Loss of synchronization between the pedal position sensor and the TPS.

Code P0300

Random misfires were detected in the cylinders of the power plant. Error 0300 is common to many cars.

Code P0301

The ignition does not work in the first cylinder. You need to check the armor wire and spark plug.

Error P0302

Likewise for the second cylinder.

Error P0303

The same problems with the third working chamber.

Malfunction P0304

Also accurate for the fourth piston. The causes and solutions to the problems are identical.

Malfunction P0326

Break or short circuit of the knock sensor. You need to check the wiring for damage.

P0327 - malfunction Kalina: what to do

The knock sensor produces incorrect data or the ignition setting is incorrect.

Malfunction P0328

The code indicates problems with high DD levels. The fuel detonates in the combustion chamber. This may also indicate a malfunction in the sensor circuit.

Code P0335

DPKV is not working properly. A thorough diagnosis of the module is required.

Code 0336

A similar problem with the above sensor.

Kalina Sport: error P0340

The encoding causes problems in the DPRV module. If it fails, the entire sensor is replaced.

Code P0342

The signal level from the above sensor is too low.

Code P0343

The signal is too high. The error says that the power line of the part touches the plus of another device.

P 0351 - malfunction Kalina 2

A fault has been detected in the circuit of the first ignition coil. More thorough diagnostics of the module is required.

Code P0363

The PCM detected a misfire in one of the cylinders and cut off the fuel supply. It is necessary to diagnose the system.

Code P0441

Oxygen access sensor error. This happens on cars with air conditioning. Run network diagnostics and replace the damaged element.

Error P0422

There is a leak in the canister purge valve system.

P0444 - VAZ error

A breakdown indicates a lack of load at the output of the adsorber system.

Code P0485

There are problems in the control system for the head fan of the power plant cooling system.

Kalina: code P0500

The vehicle speed sensor has failed. Its lines need to be checked.

Code P0504

A mismatch in the brake pedal sensors has been detected. It is necessary to check the mobility of elements.

Code p0506

Standard automatic transmission error. The control module has detected that the engine idle speed is excessively low.

Code P0507

The opposite meaning of the above paragraph. With code 507, the “check” will light up on the instrument panel.

P0523 error

The automatic transmission module received too high a signal from the oil pressure sensor. Need a system check.

Code p0562

Insufficient contact in the ignition system fuse block.

Error P0615

The starter relay is not working properly. You need to check the wiring and the element itself for damage.

Code P0830

Says the signal from the clutch switch is not being read or received.

Code P1135

The heater in the oxygen sensor is faulty. You also need to check its wiring circuit.

P1141 code

DK1 heater malfunction. Complete absence of heating.

Code P1301

Misfire or uneven crankshaft rotation detected.

Code P1302

The same goes for the second cylinder. The problem often happens when it's cold.

Code P1303

A similar malfunction for the third working chamber.

P1304 malfunction

Also for 4 working chambers of the power plant.

Code P1335

Throttle position is out of range. Here you should clean the damper from dirt and other contaminants.

Code P1336

Incorrect position of the throttle valve at the time of reading information from the sensors.

P1426 VAZ code

Indicates a break in the wiring of the canister purge valve.

Code P1513

The IAC module is not functioning correctly. System diagnostics required.

P1514 error

It stands for a break in the idle air control wiring. You need to go through the wires and fix the damage.

P1545 malfunction

Incorrect throttle position when starting the engine. Simply cleaning the damper mechanism from dirt and carbon deposits will help correct the situation.

P1558 error on Kalina 2

Once again, the throttle actuator is not functioning correctly. In this case, you should seek help from specialists.

Error P1570

The controller has lost the signal with the APS module. Usually the issue is in the wiring.

Error P1578

The damper zero adaptation value is outside the permissible limit. You need to force flash the system firmware.

Error P1602

There is no power in the engine control unit. This sometimes happens due to moisture getting on the contacts.

P2101 malfunction

An open circuit was detected in the throttle valve TAC drive.

Breakdown 2122

TPS UDKP2 receives too low voltage.

Breakdown P2127

Low voltage in the throttle position sensor E. This threatens to increase fuel consumption and interrupt the operation of the power plant.

Breakdown P2135

There is desynchronization of throttle position sensors 1 and 2. Check the module electronics for faults.

Breakdown P2187

Idle mixture too lean. Error 2187 indicates problems with pressure in the fuel rail, or parasitic air leaks in the lines.

Breakdown P2188

The opposite meaning of the above code. Malfunction 2188 indicates problems with the air filter or incorrect settings of the mixture formation device.

Knock Sensor Errors

Engine failures are usually accompanied by improper operation of the motor. The engine may shake, the speed may fluctuate, and there may be excessive vibration coming from it.

Mass air flow sensor errors

The module is located on the intake tract, after the air filter. The car may malfunction. In this situation, the engine does not pull, stalls, or may have difficulty gaining speed.

Cylinder misfires

Typically, misfires in the cylinders are shown as codes P0300, 01, 02, 03 and 04. The first code indicates that there are multiple misfires for the internal combustion engine in general. Subsequent encodings speak about each specific cylinder sequentially.

Brake pedal errors

Most problems here are caused by worn or damaged pressure sensors. The contact group of the device is located under the tidy directly behind the brake system lever. To perform the test yourself, you can forcibly close the sensor contacts and check the operation of the stops.

Throttle faults

Associated with its incorrect actual position relative to the calculated indicators. It can be eliminated by simply cleaning the device from dirt and carbon deposits.

Adsorber errors

The adsorber system is sensitive to mechanical damage and carbon deposits. Problems consistently arise when sensors and sensors malfunction.

Catalyst errors

If an element fails or its efficiency decreases (in the case when all DCs are operational), the entire module must be replaced. Individual drivers can cut out the entire block and reflash the BC to EURO-2 or 3.

Lambda probe errors

Oxygen sensors consistently fail due to wear or excessive oxidation of the wiring contact groups.

Speed ​​Sensor Errors

The meter's sensor is extremely reliable. The device may fail due to mechanical damage or natural wear and tear. In the event of a breakdown, the entire sensor should be replaced.

EEPROM error

There is a firmware problem. Seek professional help immediately.

Kalina ECM errors

A special place in the parade of malfunctions is occupied by breakdowns of the engine control system. Drivers are not recommended to deal with the problem themselves. Without sufficient knowledge and tools, you can only do harm.

Kalina: clutch sensor errors

Standard clutch problems have a similar meaning to brake pedal problems. The pressure part of the controller often fails due to simple natural wear and tear.

Crankshaft sensor errors

It is a module that reads the number of gear teeth per motor revolution. When the sensor has more or fewer teeth, malfunctions appear and the operation of the power plant is unstable.

Camshaft Position Sensor Errors

Failures of the DPRV appear and are eliminated in the same way as the DPRV.

Electric power steering errors

The module may be damaged due to a strong impact or “flying” over potholes. Experienced drivers recommend immediately contacting specialized specialists at a service station.

Phase sensor errors

Standard distributor breakdowns require the attention of specialized specialists. If such malfunctions are detected, it is recommended not to enter the module yourself.

Misfire faults

The information is already listed above.

Coolant temperature sensor errors

DTOZH may transmit incorrect data due to damage to wiring or contact groups. If the sensor is working properly, you should stop and let the engine cool.

Lada Kalina: check engine light is on, how to find out the error

There are two ways to find out exactly what happened.

1. Perform self-diagnosis using the pedals and the daily mileage reset button.
2. Connect an external scanner to the car and perform detailed diagnostics.

Errors in the Kalina 6001 mmobilizer

Problems often appear when starting the power plant. The reason is a software glitch or damaged wiring.

Error short circuit of the fuel pump and idle regulator

Everything is the same here, standard checking of sensors and their wiring.

Rich mixture error

The information is already listed above.

Error - lean mixture at idle

The data is already in the article above.

Absorber valve error

The purge system for the gasoline vapor recovery module is quite reliable. A mechanical valve may fail due to simple carbon deposits or oxidation.

ABS error

The system consistently reports faults in the wheel rotation sensors. This is often due to wiring problems, interruptions or oxidation of contacts.

ECU errors Kalina 8 cl

If ECU breakdowns occur, it is recommended to contact specialists. The problem may be caused by simple contact failure or problems in the internal parts of the unit.

Kalina EUR paperclip method: error codes

Involves performing a procedure.

• Remove the plastic steering cover by removing the screws at the bottom of the panel.
• Find a black eight-pin plug.

• Insert the ignition key into the lock, but do not turn it.
• Arm yourself with a paperclip or a piece of wire and short-circuit pins 6 and 7.
• Finally, turn on the ignition and look for fault codes.

What repairs can fix the P0101 code?

To resolve error P0101, you may need to:

• Check for the presence of the error code using a scan tool, clear the code from the computer's memory, and test drive the vehicle to see if the P0101 code appears again

If the error code appears again:

• Reconnecting, Repairing, or Replacing the Mass Air Flow Sensor Electrical Connector
• Repair or replacement of electrical wires related to the mass air flow sensor
• Replacing worn or damaged vacuum hoses

Additional comments for troubleshooting P0101

• Many high-mileage vehicles have short-term problems with sensors, which usually occur when the engine is started or the transmission is subjected to prolonged stress.
• Often, if the Check Engine Light comes on but the vehicle continues to operate normally, the OBD-II system can be reset and the problem will be resolved. This is why it is important to check for an error code using a scanner and clear the code from the computer's memory before performing any repair work.

On which cars is this problem most common?

The problem with code P0101 can occur on different machines, but there are always statistics on which brands this error occurs more often. Here is a list of some of them:

• Alfa Romeo
• Audi (Audi a8, Audi q7)
• BMW (BMW X3, BMW X5)
• Cadillac
• Chery (Chery Tiggo, QQ)
• Chevrolet (Chevrolet Aveo, Captiva, Lacetti, Tahoe, Epica)
• Citroen (Citroen Jumper)
• Daewoo (Daewoo Winstorm)
• Dodge
• Fiat (Fiat Albea, Doblo, Ducato, Panda, Stilo)
• Ford (Ford Kuga, Mondeo, Ranger, Transit, Focus)
• Honda
• Hummer
• Hyundai (Hyundai N1, Getz, Grand Starex, Porter, Santa Fe, Starex, Tucson, ix35)
• Isuzu (Isuzu Rodeo)
• Jaguar
• Jeep (Jeep Grand Cherokee)
• Kia (Kia Bongo, Carnival, Magentis, Sid, Sorento, Sportage)
• Land Rover (Land Rover Range Rover)
• Lexus
• Mazda (Mazda 3, Mazda 5, Mazda 6, Mazda cx7)
• Mercedes (Mercedes Viano, Vito, Sprinter, w203, w211)
• Mitsubishi (Mitsubishi Fuso)
• Nissan (Nissan Beetle, X-Trail)
• Opel (Opel Antara, Astra, Insignia)
• Peugeot (Peugeot Boxer)
• Renault
• Saab 9-5
• Skoda (Skoda Octavia)
• Suzuki
• Toyota (Toyota Avensis, Camry, Corolla, Land Cruiser)
• Volkswagen (Volkswagen Passat, Touareg, Touran, Tiguan)
• Volvo (Volvo s60, xc70, xc90)
• VAZ 2114, 2115
• Lada Granta, Kalina, Niva, Priora
• UAZ Patriot

With fault code P0101, you can sometimes encounter other errors. The most common are the following: P0106, P0107, P0111, P0171, P0174, P0300, P0420, P0430, P2004, P2178, P2180.

Errors during diagnostics

In order to accurately determine the cause of the error and methods for eliminating it, diagnostics are carried out. It can be done with the help of a car mechanic or yourself if you have the proper experience. An OBD-2 scanner is used for operation. Common errors that occur when diagnosing a P0122 code include:

• sensor “A”, which is responsible for the throttle valve, connector and electrical wires, is not inspected;
• the scanner is not checked, the code is not cleared from the computer memory, the system is not re-checked before repair;
• sensor “A”, responsible for the correct position of the throttle valve, is not inspected properly;
• The voltage of sensors “A” and “B”, responsible for the throttle valve, is not checked before and after repair work.

Common errors on Lada Granta

But these are not the only mistakes that Lada owners encounter. Errors occur on both 8- and 16-valve engines. Here are some of them:

• p0503 – the speedometer is malfunctioning (read more about speedometer failure using the example of a Volkswagen Bora with an automatic transmission);
• p0422 – catalyst is clogged (what to do if the catalyst is troit);
• p0600 - the immobilizer does not respond, you should check the wiring or read what to do if the immobilizer does not pump the fuel pump;
• error p1701 on the Grant-automatic - faulty power supply circuit.

These are the main codes that Lada Granta owners may encounter. You should not neglect them; you must immediately take measures to eliminate them.

Diagnosis and problem solving

Carefully check the Throttle Position Sensor (TPS), wiring connector and wiring for opens, etc. Repair or replace as necessary to resolve P0122.

Check the voltage at the TPS (see your vehicle's service manual for more information). If the voltage is too low, this indicates a problem. Replace the sensor if necessary.

If recently replaced, the TPS may need to be adjusted. On some vehicles, installation instructions require proper adjustment (see repair manual for details).

If there are no symptoms, the problem may be intermittent and cleaning the code may temporarily resolve it. In this case, you should definitely check the wiring to make sure that it is not rubbing, worn out, etc.

Other trouble codes related to the TPS sensor and circuit: P0120, P0121, P0123, P0124.

How does the remote sensing position sensor work?

Most manufacturers equip cars with moving (contact) sensors, which are ponetiometers with a moving element. This is its weak point, because it experiences friction, which leads to rapid wear. Now there is an active transition to a contactless option. It has great operational potential and high accuracy of parameter measurement.

Using the mobile type as an example, we will consider the design features and operating principle of the PDZ sensor. It is rigidly fixed to the axle, into the throttle body. One end is connected to the battery, the other is connected to the negative electrode. They are supplied with voltage (5V). The third end moves along an axis on which the voltage changes when the damper changes position. The change interval is from 0.7 to 4V. This is indicated by the sensor in the ECU. This signal is fundamental in regulating the fuel system. Electronic control is carried out through sensors that transmit the following data:

1. Crankshaft rotation indicators
2. Air flow and temperature
3. Antifreeze temperatures
4. Throttle position
5. Feedback system (exhaust gas composition)
6. Detonation in the engine
7. Mains voltage
8. Travel speeds
9. Camshaft position
10. Activating the air conditioner
11. Irregularities in the road surface

What are the effects of TPS malfunctions?

1. On the idle speed parameters. Injectors do not have a unified system for this stroke in the form in which we are accustomed to seeing it in carburetor engines. All parameters of this mode are calculated only from TPS readings. Unstable speed, interrupted engine operation.
2. Increased fuel consumption. The device sends a dubious signal, which is perceived by the ECU as a closed damper (although in reality it is open). Parameters are included that imply an increase in the proportion of fuel in the mixture. It turns out that the car operates as usual, with a stable shaft rotation speed, and consumes much more gasoline.
3. As you pick up speed, you feel dips and the car jerks noticeably.
4. When the position of the accelerator pedal remains unchanged, the car jerks, and when the pedal is suddenly released, the engine completely stalls.
5. The car does not pull, you feel a loss of power.

The Check Engine button turns on, indicating that the error has been detected.

Car behavior: how to understand that there is a violation?

The difficulty in identifying this error lies in the fact that it is quite difficult for the driver to recognize. It has virtually no effect on the vehicle's mode and does not appear at all in motion. This can be explained by the fact that the operation of the camshaft in advance does not affect the characteristics of the engine. The presence of such a problem will not allow the engine to operate in optimal mode, and therefore fuel consumption will significantly increase and the content of harmful substances in the exhaust gases will sharply increase. For some engines, the error is accompanied by unstable operation at high speeds. This happens mainly due to an excess of fuel.

We are looking for the causes of error P0011, ways to check the phase shifter, video

If the check light comes on and an error code P0011 is displayed, this indicates the presence of irregularities in the position of the camshaft. If such a problem occurs, the vehicle owner must immediately contact a service center for help. A camshaft position error indicates a problem in the system for changing gas distribution phases. They appear if the camshaft performs work with a significant advance. Let's take a closer look at this issue and try to figure out all the subtleties of this code error.

Why was the throttle valve equipped with a sensor?

The injector is equipped with flaps that change the angle of location, opening/closing the gap for the passage of air flow. Its volume should be enough to create a mixture with fuel in optimal proportions (ideally 14.7 parts of air per 1 part of gasoline). The mixture is then injected in portions into the engine cylinders, where it is burned.

In order to successfully regulate all stages of fuel supply (and this is a huge number of parameters), the electronic unit needs a reliable assistant who will collect and send truthful and timely information to the central authority.

Such functions are assigned to a miniature device - the PDZ sensor, the trouble-free operation of which determines the proper and efficient functioning of the engine.

The data from this sensor forms the basis for the calculation parameters for many electronic systems controlled by the ECU:

Primary sources of sensor failure

The most obvious reason for the incorrect operation of such a device is wear. Moreover, the wear of different parts has different effects on the system.

• Erasing conductor coating. Therefore, it becomes impossible to fix the voltage indicator.
• Exhausted wear reserve of the moving element of the sensor. When the gap between it and the axle conductor becomes too wide, contact between them is lost. At the same time, the check does not pop up. You can guess about it by the intermittent operation of the engine in different modes.
• Oxidation, rust coating, accumulation of a layer of contamination on the contacts.

After detecting such design changes, you have no choice, the device cannot be repaired, it must be replaced. Of course, it is better to purchase a contactless device. It is much more reliable, because it has no rubbing elements.

Error P2135 dpdz

Along with this error, the ECU produces some others that reflect deviations from the norm in the operating parameters of the throttle valve and their sensors - P0120, 0122, 0123, 0220, 0223, 0222, 01578.

The test comes down to measuring the voltage of the sensor signal, as well as the resistance of the wires, especially the state of the ground pin of the electronic unit.

Possible reasons could be:

1. Poor condition of the “mass”. If necessary, clean, solder, eliminate breaks
2. Faulty relay. This problem can be solved by replacing the part (it is better to purchase a part from a European manufacturer with a current of 40 amperes)
3. Unsatisfactory condition of the sensor's electrical outputs. You can try bending them in the connector, this is often enough.
4. A short circuit is detected between VTA contacts 1 and 2. Voltage measurements in this zone show a deviation from the same 5V by more than 0.2V
5. Problems in the electromechanical throttle mechanism (EMDU). The malfunction is eliminated by replacing the device.