Do-it-yourself Largus 16 valve k4m firmware

Any car owner wants to increase engine power and torque and at the same time reduce fuel consumption. All this is promised to be done by specialists involved in chip tuning. The Lada Largus is not equipped with the most powerful and high-speed engine. You can use chip tuning to slightly improve the basic performance of the engine.

What is chip tuning

The phrase “chip tuning” is formed from two words: “chip” - microcircuit, and “tuning” - improvement. The essence of the process is to change the engine control algorithms of the electronic unit to achieve better results - finalizing the factory characteristics. The ECU operates according to a specific program, which is stored in a ROM type memory (read-only memory), in accordance with various calibration tables (two- or three-dimensional). There are calibrations for different engine operating modes - starting, idling, power - and are used depending on how exactly the engine operates at a particular moment. Sensors transmit data to the controller, and it issues commands to the executive units, ensuring and maintaining stable engine operation. When adjustments are made to the calibration tables, the operating algorithm of any unit controlled by the ECU changes.

To increase power, you can change the ignition timing, fuel injection time, and the operating mode of the catalyst responsible for the toxicity of exhaust gases. You can also increase the maximum speed and many other parameters.

Chip tuning is firmware that improves the functionality of a car. It allows you to install additional electronic modules, including replacing the standard ECU with a modernized one, followed by adjusting the operating parameters of the power plant. In most cases, chip tuning involves manipulation of the factory controller.

Advantages

The Largus engine has a reserve of power and does not work at full capacity. Controller firmware will help:

make driving easier by improving speed and traction characteristics;
reduce acceleration time - the car will accelerate faster;
increase engine power, which will allow you to feel almost no failures when the air conditioner is operating or at maximum load: lack of power from the factory is the main factor in the use of chip tuning.

Such tuning is simpler than a deep modernization of the engine - installing a turbine or boosting it. Installing the firmware takes no more than an hour, while the work listed above can take a week or more. Among the advantages of such modernization:

chip tuning is an inexpensive procedure and at the same time effective;
if the firmware is unsuccessful, you can return the engine operating mode to factory settings;
high availability of such adjustments;
chip tuning helps adapt the operation of the power unit to a different type of fuel - important when installing gas equipment;
the ability to configure the internal combustion engine for changes made to the design - turning off the catalyst, cutting off maximum speed and engine speed values, removing filters.

The settings are selected according to your driving style - from economical to aggressive. Combined software has become in demand, with the help of which maximum results can be achieved from the engine.

After the firmware, there is a general improvement in performance and an increase in performance relative to the standard version by about 20%.

Flaws

Chip tuning has fewer disadvantages than advantages, but each of them can “discourage” the desire of car enthusiasts to flash the ECU. Negative aspects of the procedure:

complete or partial failure of the engine when using incorrect firmware, during self-installation or when contacting incompetent specialists;
reduction in engine life - indicators are insignificant, about 4%;
incorrect setting can lead to increased fuel consumption;
radical chip tuning with serious changes in the operation of the internal combustion engine is an expensive undertaking.

These shortcomings may discourage those wishing to improve the parameters of the Lada Largus engine. If you approach the matter competently and find good specialists, then the risk of “killing” the motor is minimal.

DIY chip tuning

The cost of updating the Lada Largus ECU software when contacting a specialized organization will be several thousand rubles. But car enthusiasts want to save money, so they are thinking about carrying out this procedure themselves. You can study the entire tuning process in detail, contact the experts, trust the chip box, or purchase all the necessary equipment and ready-made software from a specialized store.

Chip box

Installing a chip box is the simplest option that does not require time or large financial investments. The method is also suitable for beginners. It will be enough to figure out what type of engine is under the hood and buy the appropriate box. The device is inserted into the diagnostic connector, then all adjustments are made automatically. The procedure is fast, simple and straightforward. When the device is disconnected, the ECU returns to standard settings without any consequences.

Manual firmware

Compared to a chip box, which negatively affects the life of the internal combustion engine and other systems, flashing the chip is more effective. This is due to the fact that the process involves calibrating the operation of the controller, and does not replace signals to actuators. The controller firmware helps increase the power of the power unit and stabilizes idle speed when the air conditioner is running.

Chip tuning in a car service

The chip tuning process in specialized organizations looks approximately the same. The car owner comes to the service center, where, using special equipment, the factory firmware is read from the control unit. It is then modified depending on the client’s wishes - to reduce fuel consumption, increase power, remove the speed limit. After this, the ECU is flashed with a modified program.

Often, such services already have a set of programs for different cars - in this case, the duration of the procedure is reduced. After installing the new software, the warranty period begins, during which you need to run the car in. During this time, the client may demand to correct one or another parameter that made the operation worse, or to return the money for “chipping” if the result is not satisfactory. In this case, the service is obliged to “roll back” the firmware to its factory state.

Program tuning is one of the most difficult chip tuning procedures. The complexity depends on the wishes of the driver and the system that controls the engine. Tuning consists of making changes to the existing calibrations, after which checksums are calculated. If there are already similar calibrations in the database, they will be exported to the program. These procedures are carried out without the participation of the car owner. On average, chip tuning of a Lada Largus will cost about 4-5 thousand rubles.

Changes in engine operation after chip tuning

The increase in power on all types of engines installed on the Lada Largus does not exceed 7% on average, while fuel consumption decreases or remains the same. In fact, the firmware does not affect the operation of the engine in any way. Then why does the manufacturer initially underestimate the characteristics of the power plant? It's all about European regulations, according to which power is relegated to the background. Environmental standards are not the only reason for this, but one of the main ones. In order to comply with these standards, AvtoVAZ underestimates engine power and efficiency. But often low engine efficiency is associated with errors that chip tuning can easily eliminate by using reserve engine resources unused by the manufacturer.

Many car owners are interested in the question of the warranty status after updating. The answer is clear: after chip tuning, the car is removed from warranty. No official dealer will want to take responsibility and repair a car ruined by incorrect firmware.

Chip tuners claim that firmware programs are created based on factory ones, and the results of manipulations with the software are invisible. But the dealer will definitely see that the car’s characteristics differ from the factory standard, and warranty service will be denied.

Technical characteristics of the VAZ 21129 1.6 16kl engine

View	online
Number of cylinders	4
Number of valves	16
Exact volume	1596 cm³
Cylinder diameter	82 mm
Piston stroke	75.6 mm

Power supply system	injector
Power	106 hp
Pair	148 nm
Compression Ratio	10,5 — 11
Type of fuel	AI-92
Environmental standards	5 EURO

Reviews from car owners about the car's performance after the firmware

Alexander, Barnaul: “Those who are going to “sew” for a big increase in power don’t even have to start, since this won’t happen. Among the changes, it was noted that the engine began to gain speed faster, the “dullness” of the gas pedal disappeared, I was pleased with the update. Consumption decreased slightly - by about one liter per 100 km. It’s especially noticeable on the highway - you don’t need to put too much pressure on the gas pedal. According to the master, the increase in power was about 10%. Considering the presence of a trailer, it couldn’t come at a better time.”

Dmitry, Yekaterinburg: “The most interesting thing is not the numbers, but the sensations. I needed adaptation more - at the first traffic light I stalled like a student. The car didn’t want to drive with the throttle position at which it was moving off at the factory firmware, the gas pedal became sharper, “kicks” the engine instantly.”

Evgeniy, Novosibirsk: “After the firmware, it’s as if several bags of potatoes were removed from the trunk; with the same leisurely driving, the car accelerates faster, and you need to operate the gearshift lever less often. The ride has become more fun."

Semyon, Tver: “The firmware has more advantages than disadvantages. The most important thing is to find one that does not harm the life of the engine. My consumption has remained the same, but the engine has become more responsive and pulls more vigorously under load.”

Before flashing a car's ECU, you need to clearly imagine what result is required. This is the case when it is better to weigh all the pros and cons in advance: is chip tuning really necessary, do it yourself or contact a specialized technical center. If you decide to do everything yourself, study the possible step-by-step instructions, understand all the nuances and be aware of the possible fatal consequences.

Briefly about the design of the Lada 21129 16 valve engine

The need to use EURO 5 class internal combustion engines on new Lada models forced the management of the AvtoVAZ concern to once again modernize its 1.6-liter 16-valve unit. Taking 21127 as a basis, the engineers changed the intake, clamped the exhaust, and filled it with new firmware.

Since the unit is now placed on a subframe, the supports and oil pan have been slightly redesigned. Adaptation has also been made for the installation of an alternative French JR5 gearbox.

Otherwise, it's a good old cast iron block with a lightweight SPG made by Federal Mogul. The power type here is a regular injector, a timing belt drive with an automatic tensioner, the cylinder head has hydraulic compensators, and the intake system is regulated by flaps.

Ladnaya Mekhanika spoke about new technologies in the domestic engine industry.

One way to squeeze a little more driving pleasure out of your car is to seek the services of chip tuning. They say that firmware of the electronic engine control unit (ECU) makes the car more dynamic, acceleration time to 100 km/h is reduced, the gas pedal is more responsive, etc.

We tried to collect reviews about chip tuning of Vesta and XRAY with a 1.6-liter VAZ-21129 .

We advise you to read our articles

The ECU firmware process takes place within 20 minutes:

The master is connected to the ECU connector in the engine compartment (in the passenger compartment, the OBD-II connector is not suitable for this; it does not have a recording protocol).
Reads the standard program (so that, if necessary, it is possible to return everything back).
Uploads modified firmware.

The approximate price of chip tuning is 2500 rubles. Let's figure out whether such engine tuning is worth the money?

RSW firmware. One of the first reviews about Vesta chip tuning appeared in the summer. In it, the author talks about how, after flashing the “brains,” Vesta began to accelerate to hundreds almost 2 seconds faster (the time decreased from 16.2 seconds to 14.4). According to him, the firmware changed the reaction of the gas pedal and slightly weakened the collar of the stabilization system (it became possible to move away with a slight slip). He talks about his impressions of the new firmware at the end of his video review:

the gas pedal reacts sharper on the move, there is no delay when you need to accelerate;
while driving, the stabilization system intervenes much later.

Conclusion: the firmware is worth the money. You shouldn't expect a miracle, but you will definitely get a little pleasure.

Another review about the same firmware appeared a little later. The owner of Vesta first took readings using Racelogic on the standard configuration, and then uploaded the RSW firmware. I took the values again using the same software and compared the two graphs.

The only change that I was able to notice was that the throttle opens completely, about halfway through the stroke, there is no point in pushing further, nothing changes. In other words, only the accelerator pedal was flashed.

Ledokol firmware. The comparison of standard and modified firmware followed a similar scheme (using Racelogic). According to calculations, at first Vesta accelerated to 100 km/h in 219.45 meters, and after chip tuning the car covered 229.47 meters in the same time. If you visualize this, then the chipped car was two car lengths ahead. It was also noted that in first gear the engine can be “spinned” to 7000 rpm and higher.

2 Chip tuning Largus Cross - small adjustments for grandiose changes

Despite its complex design and a huge number of new products in the field of automotive electronics, everyone can perform chip tuning of the Largus engine with their own hands. All you need is a little patience, computer hardware and licensed software. The latter includes:

Combiloader loader, updated to the latest version;
Firmware purchased strictly from the official website. For chip tuning the Lada Largus Cross, the Bosch 7.9.7 utility or the latest version January 7.2 is perfect;
editor for configuring and calibrating firmware;

As for the equipment, for effective work on flashing the engine ECU, you need a K-Line adapter and a laptop exclusively with Windows XP. Other software will not find the firmware, which is why you will not be able to even start chip tuning.

Having all the equipment available, you can get to work. First you need to find the Lada Largus ECU. It is located behind the rear lid of the glove compartment in the station wagon. We disconnect the shield, connect the adapter and turn on the car ignition. Next, we proceed to install the programs.

First in line are the loader and editor. After their successful installation, we begin to work with the firmware. To do this, install it on your computer, indicating the final location address in the previously installed bootloader. When the latter finds the firmware, you need to configure it. In the “Settings” window you will find a lot of graphs that will help you choose the optimal characteristics for your station wagon.

Having calibrated the firmware to your liking, turn on the ignition and proceed to the most important stage of chip tuning - installing the firmware on the engine ECU. To do this, click on the “Run” window and wait for the utility installation to complete. Once the download line reaches the end and you see the “Download Complete” window, turn the ignition back on and close the installer. Next, close the bootloader and editor and turn off the ignition. After this, disconnect the adapter from the laptop and ECU.

At the last stage, you can check the operation of your car. Provided that the characteristics are properly calibrated and chip tuning is performed correctly, you will immediately notice an improvement in car dynamics, a reduction in fuel consumption by about 20% and more stable operation of the engine and transmission.

AutoSoftos.com

The package has been updated to Upd3 and includes Upd1, Upd2 and Upd3 + GBO. We present to your attention a set of Paulus firmware for Lada Largus (LADA Largus), you may also find Ledokol firmware for Lada Largus useful. The package contains versions for E2, which is unlikely to be found anywhere, and also a version with a close to optimal OZ for working on propane-butane mixtures.

Firmwares with the following software IDs are available in CombiLoader only format:

LADA Largus 1.6L 16V

S110140026A_8201264666.bin StartPower_2012_S110140026A_8201264666.bin StartPower_2012_S110140026A_8201264666_E2.bin StartPower_2013_S110140026A_8201264666 .bin StartPower_2013_S110140026A_8201264666_E2.bin
GBO
StartPower_GBO4_2012_S110140026A_8201264666_E2.bin StartPower_GBOsantehnika_2012_S110140026A_8201264666_E0.bin

LADA Largus 1.6L 8V

S110140026A_8201261286.bin StartPower 2012 92 S110140026A_8201261286 E2.bin StartPower 2012 92 S110140026A_8201261286.bin StartPower 2012 95 S110140026A_8201261286.bin StartPower 2012 95 S110140026A_8201261286_E2.bin
GBO
StartPower GBO4 2012 95 S110140026A_8201261286_E2.bin StartPower GBOsantehnika 2012 95 S110140026A_8201261286_E0.bin
112012
S110140026A_8201264017_45E045004D31.bin StartPower 2012 92_S110140026A_8201264017_45E045004D31.bin StartPower 2012 92_S110140026A_8201264017_45E045004D31_E2.bin StartPower 2012 95_S110140026A_8201264017_45E045004D31.bin StartPower 2012 95_S110140026A_8201264017_45E045004D31_E2.bin
GBO
StartPower GBO4 2012 95_S110140026A_8201264017_45E045004D31_E2.bin StartPower GBOsantehnika 2012 95_S110140026A_8201264017_45E045004D31_E0.bin

CalibOnly LADA Largus 1.6L 16V

CalibOnly LADA Largus 1.6L 8V

Calibrations: Paulus