How to fix error P0441 on Lada Kalina

Code P0441 means that the evaporative emission control (EVAP) system is not flowing properly.

The EVAP system prevents gasoline vapors from escaping from the fuel tank into the atmosphere. It traps and stores gasoline vapors in a small canister installed next to the fuel tank, called an adsorber.

When you drive and certain conditions are met (speed, engine temperature, etc.), fuel vapors are gradually removed from the canister and burned inside the engine.

Code P0441 means the purge flow is lower or higher than it should be. The flow capacity is controlled by the canister purge valve (purge solenoid).

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How does a mechanic diagnose a p0441 code?

First, the mechanic will connect the OBD-II scanner to the vehicle's diagnostic port and read all the stored data and error codes.
He will then clear the error code from the ECM and test drive the vehicle.
If P0441 appears again, have a mechanic visually inspect the evaporative emission system.
The mechanic will then check the fuel pressure sensor in the fuel tank for damage.
He will also check the fuel cap.
He will then check the operation of the vacuum switch and purge valve.
If no problem is found, the mechanic will perform a thorough check of the evaporative emission system to check for leaks.

Diagnosis of faults using the dashboard

Owners of the Lada Kalina need not only to know the fault codes by heart, but also to understand how to diagnose the health of the car using the dashboard, on which the analyzed codes are displayed.

To run diagnostics you need to do the following:

activate a button that calculates the car’s mileage per day;
continuing to hold it, turn the ignition key;
if everything is done correctly, the arrow of the electronic elements will begin to move from the current position to the designated one;
after the arrow reaches its final position, you will need to activate the button located on the wiper switch so that the received information is switched to the screen;
When this button is activated, the functionality of electrical appliances will be displayed on the panel, which will allow car owners to quickly identify the malfunction and quickly fix it.

According to this scheme, you need to update the information on the instrument board three times so that you can visually familiarize yourself with the error codes, which are indicated by numbers:

2 indicates a problem with the mains voltage;
3 warns of a breakdown of the sensor that monitors the fuel level;
4 shows that the cooling system sensor has failed;
5 warns that the temperature sensor has failed;
6 warns of engine overheating;
7 indicates that the oil pressure has dropped significantly;
8 warns of problems in the brake system;
9 indicates that the battery is low.

Malfunctions in the fuel vapor recovery system of the Lada Kalina

Since the solenoid valve itself is not a complex device, it has few malfunctions as such - it may not open or close when necessary, or may freeze in a certain position. But the culprit of the breakdown may not only be Evap-Solenoid; the gasoline vapor recovery system does not work correctly for other reasons:

connecting pipes are pinched or clogged;
normal vacuum is not created in the system;
due to an open circuit, there is no voltage on the valve;
the carbon filter is completely clogged (which is rare);
The control unit malfunctions.

If the CPA is stuck in the open position and does not block the channel, the following defects may occur:

the fuel mixture becomes richer, causing “blackness” to appear on the electrodes of the spark plugs;
the engine begins to operate unstably, this is especially noticeable at idle;
gasoline consumption increases;
The throttle response of the internal combustion engine decreases.

When the EVAP channel is constantly blocked by the purge valve, excess vapor pressure is created in the gas tank, due to this:

there is a risk of fuel pump failure;
The fuel level sensor may fail.

It should be noted that purge occurs in a certain mode after starting the engine, the program is executed depending on the crankshaft speed, and the system does not work at idle. An impulse arrives at the CPA if:

the coolant has heated to a temperature of at least 75 degrees Celsius;
the throttle valve is open at least 4%;
the car is moving at a speed of more than 10 km/h (but this is not a necessary condition).

Problems in the electrical part of the EVAP are detected by the control unit, and the Check Engine warning lamp lights up on the instrument panel. The fault code can be determined using a special diagnostic scanner or a computer with a program installed; the most common errors in the vapor recovery system detected by the diagnostic device are P0441 and P0455.

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Replacing the adsorber purge valve on Kalina

If the check shows that the Evap-Solenoid is faulty, the part must be replaced (catalog number - 11181164200). There is no point in repairing the device:

the price of the valve is in the range of 400-800 rubles;
You can buy the device in almost any store that sells VAZ spare parts;
changing the KPA is very easy and simple.

But before making a replacement, it would be a good idea to check the control circuit; quite often the valve does not work due to a break in the wires going to it. To complete the work, you will not need a pit or a lift, and the procedure itself will take no more than one to two hours, even if the operation is performed by an inexperienced worker without metalworking skills.

We change the valve as follows:

turn off the ignition, raise the hood;
find Evap-Soleno />
We dismantle the valve together with the tube, and the disassembly is almost complete.

Replacing the purge valve could be considered a very simple task, if not for one “but” - it is very difficult to remove the plastic tube from the CPA without damaging it, and it does not come with the new valve. There are two options here:

try to carefully heat the connection with a hairdryer and pull off the pipe;
cut the tube at the connections, and instead buy an ordinary fuel hose with a diameter of 8 mm and two clamps.

Having measured the required length of the hose, cut it, connect it to the valve and connector, we get approximately the same design as in the figure below.

We install everything in place, start the engine, and test the car on the move.

Error p0441

Owners of Lada Kalina often note that during the operation of the car, error P0441 appears, indicating that the gasoline vapor purge system is not operating correctly (the air flow differs from the norm). The cause of this malfunction may be:

inoperative adsorber valve;
clogging of the air line from the control unit to the air filter;
air leakage through connecting pipes.

What should not be immediately considered is the line from the gas tank to the adsorber; here, a breakdown does not in any way affect the readings of the computer or diagnostic scanner. Still, most often Evap-Solenoid fails; this is a characteristic “disease” on Kalina.

If the EVAP valve stops functioning normally, it is not at all necessary that the engine will lose power, the fuel pump will fail, and so on. Mainly due to problems with the control gear, exhaust toxicity increases, and the Check Engine on the dashboard periodically lights up. There are car owners who do not pay attention to the diagnostic warning light, continuing to operate the car, but do not experience any great inconvenience.

The adsorber valve is knocking on Kalina

Many owners of Lada Kalina cars are faced with a problem - while the engine is running, an incomprehensible clattering sound is heard from under the hood; when identifying the cause of the noise, it turns out that the sound comes from the purge valve. Although the knocking does not affect the operation of the car in any way, some car owners are annoyed by it, and car owners want to get rid of it. You can “overcome” the unpleasant clattering sound; you just need to do the following:

remove the valve and inspect it carefully;
Find the adjusting screw on the side; it will be filled with epoxy resin on top;
pick out the epoxy, tighten the screw half or three-quarters of a turn;
install the valve in place, check for changes in the operation of the internal combustion engine.

You cannot tighten the screw any more, in this case the control panel will stop opening, and the engine diagnostic lamp on the instrument panel will record an error. It is also worth noting that some drivers confuse the clatter of the solenoid valve with detonation, but in principle, the sounds can be distinguished. You just need to take into account that detonation occurs under load, for example, when a loaded car is moving uphill, in this case they say “fingers are ringing.”

Common Problems Causing Code P0441

In many vehicles, including VW, Audi, Nissan and Mazda, a bad purge valve is the most common culprit for code P0441. The purge valve (also called the purge solenoid) is easy to replace in most vehicles.
Often when the canister begins to fail, carbon granules are drawn into the purge line and clog the purge valve or purge lines. If there are a lot of carbon granules stuck inside the purge valve, the canister may also need to be replaced.
In many Toyota and Lexus cars from the 90s - 00s, there is an EVAP VSV valve and vacuum hoses on the canister that need to be checked. Often the VSV fails, or one of the vacuum hoses becomes clogged with carbon granules from the adsorber.
Unfortunately, Toyota sells the EVAP VSV valves as one piece with the canister, but they can be purchased separately from a third party. In any case, all vacuum hoses connected to the EVAP VSV valves must be replaced, and metal vacuum lines must be checked for blockages and cleaned.
The 2003 Toyota Technical Bulletin (TSB) also mentions an inoperative Canister Vacuum Switching Valve (CCV VSV) as a possible cause for codes P0441 and P0446. The CCV VSV should be checked and replaced with an updated part if it does not work.
In 2002-2007 Dodge and Chrysler vehicles, it is quite common for the NVLD device to fail and cause code P0441.

Diagnosing faults using car controllers: what to do

You can diagnose faults for the Lada Kalina not only using the dashboard, but also with the help of separate automobile controllers, which are responsible for the operation of a specific component or unit of the car.

You can find out how the code is decrypted in a reference book or using a special software program. After all, remembering all the codes by heart is not so easy, especially for novice car enthusiasts.

Let's look at a few of the most common codes that the diagnostic system can show:

Lada Kalina error 0441 will indicate a breakdown of the oxygen access sensor.
Code 1602 will indicate that the computer is not receiving voltage from the network.
Code 0363 indicates a breakdown of the car coil.
The controller marked Bosch-ME-7.9.7 will report an engine malfunction.

It is worth noting that the diagnostic system does not always accurately indicate the element that has failed; most often, this system indicates the area in which the problem occurred. That is, such a system prompts the car owner about a malfunction in a certain component, so that the car owner corrects the breakdown in a timely manner, having first made a more accurate diagnosis of the defect. For example, if error code 0504 is displayed, this will indicate a malfunction in the system responsible for the brakes, and what kind of malfunctions have occurred can only be determined after a thorough study of the performance of this system.

The most common mistake when diagnosing a P0441 code is not following the diagnostic protocol, as well as not performing a smoke leak test.

Also, mechanics often assume that the problem is a damaged fuel cap, but do not perform thorough diagnostics to verify this. It is imperative to check the fuel tank cap for leaks, for example using a vacuum tester.