Blog Lada Niva Travel: fixing leaks and doing chip tuning

What is engine chip tuning?

When considering the chip tuning process, it should be noted that it can only be carried out on cars that already come with an on-board computer.
Older Nivas came without such a control unit, which means it is impossible to perform the type of tuning in question. Chip tuning means changing the program that controls the operation of the engine. For this:

• There is a plug for connection. As a rule, it is decorated so that it is not constantly in sight.
• A suitable cable is selected to connect a regular computer to an on-board computer.
• Both devices are synchronized using special software.
• Adjustments are made to parameters that may affect power or fuel consumption.

Important stages at the time of carrying out such work are diagnosing the engine before tuning and upon its completion. Not in all cases it is possible to change its operation by adjusting the program code, which we will discuss in more detail later.

The prevalence of this type of tuning can be explained by the fact that by changing the program code, almost all parameters of the engine can be adjusted. An example is the list of improvements below:

• Increase power by about 10-20%. In most cases, this is precisely why such work is carried out. By correctly adjusting the operation of the installed engine, its potential can be revealed. It is worth considering that when the power indicator increases, there is always a greater load on the engine. That is why the master takes into account the state in which he is. You should not reduce wear resistance and reliability by maximizing the power rating.
• Increase the dynamic characteristics of the car. In some cases, not only low-speed traction is important, but also acceleration dynamics. It is for such cases that chip tuning is carried out, which allows you to adjust the operation of the engine in various modes.
• Change idle characteristics. If the car does not idle or consumes a lot of fuel, then you can adjust the operation in this mode.
• Increase torque and improve engine smoothness. Due to this, the car becomes more amenable to acceleration. Torque and power are slightly related.
• Directly reduce fuel consumption. For some, it is much more important to make the car more economical. An example is using Niva for work. This type of tuning allows you to reduce fuel consumption and at the same time maintain stable engine operation in various modes.
• Reduce acceleration time in higher gears.

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Sidebar: Important: It will not be possible to increase all parameters at the same time, since they are interconnected.
For example, while increasing power, you cannot simultaneously reduce fuel consumption. Therefore, you should decide in advance which parameters are important.

Refinement of the gas distribution mechanism

The timing also largely determines the power and other technical features of the engine. Tuning the gas distribution mechanism consists of increasing the diameter of the valves followed by sealing. As practice shows, such modernization allows increasing power by almost 10%.

In many cases, when improving the engine part in question, the pushrod is replaced. Its improvement consists in increasing the intake and exhaust tappets, which can significantly increase the engine power rating.

The modifications under consideration make it possible to improve the smoothness of the ride, reduce wear of parts, and significantly increase the power rating. Of course, there are other methods of engine modification that can achieve attractive values. An example is the case of modifying the oil pump, which also makes it possible to make the engine more torquey.

Chevrolet niva release from 2020

The new model is equipped with an electronic throttle valve drive, as well as a German Bosch ME 17.9.7 ECU. In this case, the unit is not replaced - only its flashing is performed.

The described technologies provide the maximum effect from their implementation. It is possible to improve the firmware of basic ECUs when the ignition timing is changed and the fuel mixture is adjusted. However, the process requires a thorough knowledge of work processes and, according to reviews from experts, does not give the desired effect.

Malfunctions: causes, elimination

Motor design 21213

General information

When creating the Niva car, the designers were faced with the lack of a motor of suitable power. The existing engines with a volume of 1.2-1.5 liters were not very suitable for a car with all-wheel drive. The situation was saved by the appearance of a larger engine, model 2106. By maximizing the cylinder diameter, its displacement was increased to almost 1.6 liters, and its power reached 80 horsepower. It was this engine that became the main power unit of the Niva for more than 20 years.

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In the mid-90s, the Niva underwent modernization, during which a number of changes were made to its design. The design of the rear of the car has changed, as well as many elements of the SUV's interior. The 1.7-liter VAZ-21213 engine began to be used as the base power unit. Initially, the engine was developed for the modernized car of the seventh model, but the SUV project turned out to be more promising.

Advantages and disadvantages

At the time of its creation, ICE 21213 had the following advantages over earlier versions:

• trouble-free carburetor - does not require frequent adjustments, when adjusted by a specialist, it ensures gasoline consumption at the level of injection injection;
• improved performance - in addition to power/torque, speed and throttle response have increased;
• several repair sizes of ShPG - major repairs can be performed several times without purchasing a new unit.

ShPG 21213

The disadvantage is the excessive noise during operation of the internal combustion engine, high consumption of fuel and lubricants and antifreeze. Currently, instead of standard elastic cylinder head gaskets, metal packages with a long service life can be used. However, machine grinding of the surface of the head and block, respectively, will be required.

Users note among the disadvantages of the motor the low quality of the factory assembly. For example, the connecting rod pin bushings are pressed in incorrectly - with a cut in an arbitrary direction. And these parts experience maximum loads at dead spots, so in the literature it is recommended to press them either at 45 degrees or in a horizontal direction, which will increase the service life of this consumable.

Main characteristics of internal combustion engine 21213

Firmware performance

Successful implementation of such tuning will lead to the following results:

• fuel will be saved significantly, ranging from one and a half to two liters per 100 km;
• engine functionality will improve;
• the machine will run smoothly, without jerking.

To perform flashing, use the ChipExplorer editor, which is available for download on the Internet. Such a program is offered for sale in a car dealership. It is important to know how such tuning is performed. If you lack confidence in your abilities, it is better to seek professional help.

About the price

Car enthusiasts who are interested in the question of how much a new Chevrolet Niva costs will be interested to know that the price starts from 630,000 rubles and above, depending on the chosen modification.

Work on reflashing the ECU will cost the vehicle owner in the amount of 5,000 to 6,500 rubles. If the driver is confident in his abilities, he can use a special program and reflash the engine himself. But mistakes in such a matter are extremely undesirable.

The essence of Chevrolet Niva engine chip tuning

It is important to understand that the Chevrolet Niva ECU (electronic control unit), which is responsible for engine operation, is set to optimal mode, but with certain restrictions set by the manufacturer. This was done in order to protect the engine from excessive load on parts and thereby increase its service life. Power loss due to manufacturer restrictions can be 5-10%.

The task of chip tuning is to extract the missing performance that is inherent in the Chevrolet Niva engine by adjusting the ECU software.

The entire Chevy Niva chip tuning process is divided into the following stages:

• the necessary data is read from the ECU controller;
• necessary adjustments are made;
• updated data is written to the controller.

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As a result of this correction, the following occurs:

• increase in total engine power and dynamics,
• fuel economy,
• the car moves more smoothly, without jerking.

The ECU reprogramming procedure is quite quick, just a few hours, and does not require mechanical intervention.

Reviews from “traditional craftsmen”

Do-it-yourselfers who have experience doing Chevrolet Niva chip tuning with their own hands often say that such work did not make sense. They claim that the engine is capable of adapting to existing conditions, “self-learning.” Indeed, this is typical for Bosch ECU models 7.9.0 and M 7.9.7, as well as M 7.9.7+. But if the “January” block of model 7.2 is installed in the engine, it is quite advisable to perform a flashing, changing all the factory settings. Then the engine power indicators can increase up to 10%. It is advisable to entrust such work to a specialist. The final quality directly depends on this. This way you can avoid negative consequences.

Chip tuning of the VAZ 21214 engine

Chip tuning of power units of VAZ 21214 (21213) modifications is practically ineffective. The reason for this is the atmospheric design of the engines. Mechanical tuning will help to a greater extent here. Chip tuning will help improve the engine sound, handling, and the ride will become a little smoother. But anyone who doesn’t mind the time and wants to bring the Niva car system to perfection can conduct an experiment.

To make the layout of the Niva car look like a domestic all-terrain vehicle produced by VAZ, emphasis should be placed on mechanical tuning of the engine, air intake and exhaust systems. Do not forget about installing additional equipment, such as a turbo pistons snorkel and an excess pressure relief valve.

Improving a car using chip tuning does not give a significant result, but it can significantly increase fuel consumption. Almost all cars from the VAZ classic family are more suitable for mechanical engine tuning.

Benefits of Execution

Chip tuning of the Chevrolet Niva engine allows you to obtain many tangible advantages:

• significantly increase engine power - turbocharged power plants are strengthened by almost 35%, engines in which turbocharging is not provided - by almost 7%;
• provided that an experienced specialist is involved in the work, carry out all operations as quickly as possible;
• significantly increase dynamic acceleration performance;
• using firmware, you can remove those restrictive settings that prevent the vehicle from accelerating to maximum speed;
• Now you can reconfigure the engine, change the type of fuel it consumes, for example, AI - 92 to AI -95.

After flashing the Chevrolet Niva ECU, you can always return to the factory settings.

Electrical components

The VAZ-21213 engine is equipped with a generator, which also serves as a drive belt tensioning mechanism. To do this, it has a movable support, which, after installing the tension, is clamped with a nut. The engine is started from an electric starter mounted in the tide on the clutch housing.

The ignition includes a special sensor that supplies ignition pulses and a common coil for all spark plugs. The operation of these elements is controlled by the switching unit.

Eventually

The main motives that motivate car enthusiasts to make software amendments to the operation of electronic controllers:

• the desire to increase the power of the internal combustion engine;
• the desire to reduce fuel consumption while maintaining traction parameters;
• low cost of this type of power unit modernization.

Many owners are interested in the possibility of “rolling back” to factory settings after making adjustments. Almost all service stations provide free return of “stock” parameters without any consequences.

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