How does a mechanic diagnose a P0444 code?
To properly diagnose the P0444 , a mechanic will need an OBD-II scanner. The mechanic will check all tubes and components related to the evaporative emission system for wear and damage. The mechanic will then perform a thorough check for vacuum leaks. He will start the car engine and check if there is a suction sound in the vacuum pipes. The mechanic will then perform a smoke leak test to determine if there is a leak in the evaporative emission system.
Error 0444 on VAZ 2114 - causes, symptoms and solutions
To understand what the essence of error 0444 on the VAZ 2114 is, you should first become familiar with the gasoline vapor recovery system EVAP - Evaporative Emission Control.
This system was developed on cars as part of the global struggle for ecology and clean air. It combines several important elements included in the fuel system, designed to retain fuel vapors, preventing their release into the atmosphere. Vapors are formed when gasoline heats up during engine operation. They are collected in the adsorber separator, and when the engine starts, they are moved to the intake manifold, which is a complex of pipelines and dampers connected by a single reservoir. From the manifold, fuel vapors enter the combustion chambers of the internal combustion engine, where they burn successfully. The EVAP system is installed on all modern car models with gasoline engines. It consists of a carbon adsorber, a PA solenoid valve and connecting pipes.
The adsorber filled with granular carbon collects gasoline vapors coming from the gas tank. The plastic container contains: a separator, a pressure sensor, and an activated carbon filter element. An electromagnetic valve is installed on the pipeline.
- With a gas tank from which gasoline vapors come;
- With an inlet line through which the adsorber is blown;
- With atmosphere through the air filter.
The process is controlled by the solenoid valve for purge the adsorber. This is an actuator in the engine control system. It is located on the pipeline connecting the adsorber and the intake manifold.
Code P0444 indicates a problem with the electrical circuit of this valve. The error is recorded in the memory of the electronic control unit after 2 operating cycles, as soon as it detects the absence of an electrical load in a given section of the circuit.
The pictures below show the canister purge valve.
Below, the reader will find out what causes error 0444 and what its symptoms are. We will try to tell you how to resolve error P0444 on a VAZ 2114 and answer other questions that concern VAZ 2114 owners due to error P0444.
What is the EVAP system for?
The evaporative vapor recovery (EVAP) system collects fuel vapor from the fuel storage system (fuel tank, filler neck, and tank cap). Under operating conditions dependent on engine temperature, speed and load, the EVAP system stores and adds captured fuel vapors to the fuel-air mixture.
The EVAP system not only captures, stores and uses fuel vapor, but also has a self-test function that ensures the system is working properly. This is an important task, since about 20% of air pollution from vehicles is caused by faulty fuel storage systems.
There are many ways to "leak test" the EVAP system, but most of them perform the leak test while the vehicle is parked for a long time (for example, at night) or during the first start after being parked. System performance is monitored by the engine control module (ECM) by sensing changes in oxygen sensor voltage and briefly adjusting fuel flow as it releases or "purges" stored vapors into the engine cylinders. These values should indicate that fuel is being added to the system and that the overall mixture is becoming richer. Purge is performed when the vehicle is accelerating, when the vehicle requires additional fuel.
Is it possible to drive with this problem?
Car owners who have error code P0444 displayed on their dashboard are wondering: is it possible to drive with this error and for how long. Experts believe that you can drive with this error if it is not superimposed by other errors and malfunctions in the control circuit of the canister purge valve (CPA), sometimes more serious than P0444. If there are problems with pressure in the system, there is reason to suspect a vacuum problem. And if cleaning the filter in the adsorber did not help solve the problem, you should contact a specialist to resolve error P0444 on the VAZ 2114.
Source
On which cars is this problem most common?
The problem with code P0444 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:
- Audi
- BMW (BMW X5, E39, E46, E53, E60, 330i, 530i)
- Chery (Chery Amulet, Handicap)
- Chevrolet (Chevrolet Aveo, Lacetti)
- Chrysler
- Citroen (Citroen C4)
- Daewoo (Daewoo Matiz, Nexia)
- Ford (Ford Focus)
- Hyundai (Hyundai Accent, Genesis, Creta, Santa Fe, Solaris, Elantra)
- Infiniti
- Kia (Kia Optima, Rio, Sorento)
- Mercedes
- Nissan (Nissan Altima, Qashqai, Tiida, X-Trail, 350Z)
- Opel (Opel Corsa)
- Peugeot (Peugeot 207, 307, 308, Partner)
- Skoda (Skoda Octavia, Rapid, Fabia)
- Subaru
- Volkswagen (Volkswagen Passat, Polo Sedan, Tiguan)
- VAZ 2107, 2114, 2115
- Gazelle
- Lada Vesta, Granta, Kalina, Largus, Niva, Priora
- TagAZ Accent
With fault code P0444, you can sometimes encounter other errors. The most common ones are: P0010, P0031, P0033, P0036, P0037, P0056, P0102, P0243, P0245, P0300, P0440, P0441, P0442, P0443, P0445, P0446, P0447, P0448, P0449, P045 2, P0453, P0455, P0456 , P0500, P0505, P0700, P0722, P1403, P2008.
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.
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