Installation of EUR from Priora and Toyota in NIVU-VAZ-2121-21213-21214-2131

The VAZ “classic” does not provide such an option as power steering. While driving on the road does not require much effort, turning the steering wheel at low speed while maneuvering in a parking lot is quite difficult. To turn the steering wheel “with one finger,” you can install an electric power steering on a VAZ 2107. Despite the apparent complexity of the device, installation and connection do not require special skills and do not take too much time. To install power steering you will need a set of wrenches, a drill and an electric power steering unit with wires and fasteners.

Purpose and principle of operation of the device

Partial dismantling of the torpedo for installation of the power steering

Before starting this work, you should find out the principle of operation of the EUR. Power steering is an important element in driving any car. Its task is to create additional forces when turning the steering wheel due to the presence of an electric drive. Modern cars have electric power steering.

Its main advantages for auto mechanics include:

• convenient adjustment of technical control characteristics,
• presence of high information content,
• reliability,
• significant savings in fuel used.

It should be noted that the EUR has 2 schemes: transmitting the forces of the electric motor to the steering shaft or the steering wheel rack. Auto mechanics distinguish 2 systems of such an amplifier.

1. With 2 gears presented as a single unit, which integrates the steering structure and power steering. The last element contains an asynchronous type electric motor. The rack is equipped with 2 sections of teeth, one of which is considered the amplifier drive.
2. With parallel drive - transmits forces from the electric motor to the steering structure through a belt drive. In this case, the force is simultaneously transmitted to the steering wheel rack and to the shaft.

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Preparation for installation

Alas, not every “ten” has a native electric amplifier. But this is not a problem, since the unit can be installed with your own hands. The work is not very difficult, because if you follow the instructions, you can do everything yourself perfectly.

At the preparation stage, you should purchase and prepare tools and materials in advance:

• New electric booster;
• Plate;
• Wiring kit;
• Promval;
• Cover and steering wheel;
• Set of different screwdrivers;
• Drill;
• Ruler.

Since we are talking about an electrical device, all kinds of oils and lubricants are not required here.

Installation

When everything is ready and you are ready to work, you can begin installing the power supply.

1. Remove the standard terminal from the block and insert it into the block on the harness.
2. Now the free terminal, which comes off the harness, is placed in place of the standard drive adjacent to the block. This will allow you to pass the standard wire between the two harnesses. The wire coming from the blocks has a rating of 50 Amps.
3. Next, disconnect the shaft casing, and then remove the ignition switch. Be sure to separate the switches. This stage is carried out carefully and slowly so that the casing does not crack.

1. Unscrew the steering rack mounting bolt and remove it.
2. Measure the length of the hole. If necessary, use a trim plate. We recommend recording the received parameters.
3. An electric amplifier must now be installed in the vacated area.
4. Please select the correct size shaft as it will not fit on the steering rack. To adjust the shaft, you will need a plate and a regrind for the shaft from Priora. By the way, when installing power units, elements from the Priora model are excellent. Take note of this.

Disassembling the unit

1. After adjusting the plate, drill a larger recess than there is now. The shaft is a hollow structure, so any metal drill can easily cope with the task.
2. The plate is placed on the amplifier and the resulting depth indicator is checked. If everything fits, secure the structure with a small bolt.
3. Put all the switches back in place and start working on the wiring.
4. It is necessary to remove two wires from the interior that go directly to the battery. This is done through the left wing.
5. Remove the washer fluid reservoir and take a piece of wire. It will be needed to secure the wires leading to the battery. They are attached to the end of the opposite one, passed and pulled through both at once.
6. Remove the instrument panel and remove the red colored block. Carefully tighten the wiring into the under-panel space.
7. Now he removes the orange wire from the red box.

Visual amplifier

1. The red block is attached to this wiring and combined with the wiring from your electric amplifier. Don’t forget to place the end of the wiring with the “bare” terminal from the amplifier onto the free standard wire located in the red block.
2. The operation is performed in a similar way with the gray wiring, which is also located in the red block. It is pulled into its regular place and secured with terminals.
3. Next, we move to the battery, securely fix the black negative wire to the pink positive wire.
4. All that remains is to connect all the wiring from the power unit and start it up.
5. At this point, the installation is almost complete. You should definitely assemble all the components, return the components to their original positions - switches, casing, steering wheel, etc.

Working with wiring

Customizing the EU

Fitting includes the following activities:

• Steering wheel alignment;
• Elimination of all gaps formed between parts;
• Reducing the length of the power cable;
• Checking the installation of LED diagnostic sensors for the EU;
• Replacement of worn or damaged elements if necessary and available.

Fit

After completing the work, sit behind the wheel and carefully inspect the front of the operations performed. Start the car and test the new steering wheel in action. Be sure to put the panel and steering wheel in order and clean the surfaces. After this, you can begin direct operation.

Main parts of power steering

The main elements of this design include:

• torsion bar and steering shaft,
• electric motor,
• ECU,
• non-contact torque sensor,
• rotor position sensor.

As for the control of the EUR, it consists of the following elements.

1. Input sensors directly related to torque and steering angle determination.
2. Executing device - it receives control signals that are generated by a special program.
3. Control unit - processes the signal from existing sensors.

Amplifier assembly

The electric power steering provides control of the car in the following modes:

• when turning,
• turning at low and high speeds,
• returning the wheels to the middle position and maintaining them in this state.

Installation of an electric power steering on a VAZ 2107 is necessary, since the steering wheel is turned with the help of this device. Due to the torsion bar, torque is transmitted to the steering system. In this case, the twist of the torsion and the angle of rotation of the given wheel are measured. For this, special sensors are used. The received data is transmitted to the ECU. In this way, the operation of the electric motor is maintained in the required mode. Next, the torque is supplied to the steering mechanism and drive wheels.

Turning at low speeds is typical for parking a car. At the same time, the steering wheel rotation angle is large. The electronic control system provides torque by maximizing the work in the electric motor.

When driving at high speed, the EUR provides a minimum level of torque. To return the wheels to the center position, you will need to increase the reaction force generated when turning. To support the wheels in a certain position, the control system independently corrects their direction.

Stages of work execution

Due to the lack of power steering on the car, many car owners decide to install power steering on the VAZ 2107 with their own hands. Auto mechanics believe that the EUR of a Priora or Niva often fails. In some cases, the steering wheel jams. Such problems are dangerous when the machine is moving. Therefore, it is recommended to give preference to factory electric amplifiers.

In any case, you will need to adjust the gearbox speed sensor. Otherwise, when starting the VAZ and driving at low speeds, the driver will not be able to notice any changes. Thus, it will be difficult to turn the steering wheel. When accelerating at high speed, the steering wheel will yield to the car owner with little resistance.

If there is no speed sensor, you will have to install one. It must have a 6-pulse pass-through from the Niva 214. As a rule, this is included in the factory equipment. Other design changes that will need to be made include:

• transfer of another choke cable, which is included in the kit for the VAZ 2108 electric booster,
• replacing the gearbox - you will need to take this unit with a short worm shaft, and the bipod must be original,
• If the 2107 has a contact ignition system, you will need to install the MUR1100E diode yourself.

Technical inspection after installing the EUR on a VAZ 2107

Installing an electric booster is formally considered to be making changes to the design of the car and is an obstacle to undergoing maintenance without the appropriate certificates of conformity. It will not be possible to hide the fact that an ESD is installed on a VAZ 2107 - the device clearly manifests itself when checking the steering wheel play. This may become a basis for refusing to issue a document confirming the completion of a mandatory technical inspection.

To pass a technical inspection in accordance with the law, you need to find an official letter from the manufacturer about the compliance of this EUR model with the requirements for installation on a VAZ 2107. This letter (copy) must be taken with you when undergoing vehicle inspection.

Also, for maintenance, a document is required confirming the installation of the EUR at a VAZ-certified car service center.

If these two documents are available, the inspection station employees do not have the right to refuse to issue a certificate. In a conflict situation, you should request a written refusal indicating the reasons.

Basic Installation Recommendations

Initially, an adapter plate and a cardan are made. For this, a cardan from front-wheel drive and classics is used. Next, the crosspiece is dismantled (a thread is cut on it) and the cardan is adjusted to the length. After scalding the joint, the crosspiece is assembled. New grease will need to be added to its bearings.

Then the steering wheel is inserted (you can take it from a Lada Kalina). The next step is to connect the electrical part of the EUR. The red wire to the battery is connected through the fuse. The brown one connects to any mounting pin of this mechanism. The orange wire (ignition) is connected to the blue (ignition switch) through a fuse. The tachometer cables are connected to the dashboard chip to the blue-brown wire. The gray cable from the speed sensor is connected to the wire running from its 2 to 9 pin of the ECU.

Many auto mechanics do not recommend installing such a unit on the 2107 with their own hands. Especially if we are talking about a converted mechanism. As for the price factor, this pleasure will cost car owners a tidy sum of money. If the car is driven by a woman, then installing power steering is necessary.

Some VAZ 2107 drivers decide to install power steering on their car. This pleasure will cost them 5-6 thousand rubles. more expensive than installing an electric booster system. However, the workflow will take longer due to upcoming rework.

In order to make life easier for the driver, having the ability to rotate the steering wheel “with one finger”, confidently park the car without breaking his hands at low speeds and speeds, power steering has long existed throughout the civilized world, which can be installed on a VAZ without much pain “ classics."

What types of steering wheel torque amplifiers are there (simply - steering wheel)?

• Power steering (power steering). Since the working medium that creates pressure is liquid, the kit includes the pump itself, hose, supply pipes, and reservoir. This amplifier uses oil under pressure. The design and installation itself are quite complex, and the amplifier itself needs to be maintained periodically. If this is done correctly, then the power steering will delight you with a smooth ride.

Statistics show that almost no one buys a new VAZ 2107 to immediately install power steering. If you have money, they take a foreign car. So the amplifier is often installed on a used car. And it’s unlikely that anyone will want to invest about half the cost (about 31-32 thousand rubles in 2014 prices) into a VAZ 2107 worth 50-60 thousand rubles. Therefore, we will tell you in more detail about the more popular option - the electromechanical amplifier (EMA). It is a little cheaper, its cost is about 20 thousand rubles.

• Electromechanical power steering (electric power steering) copes well with the load, its installation is much easier and faster. It works on the VAZ 2107 almost as efficiently as oil power steering. And most importantly, it fulfills the motorist’s eternal dream of regular maintenance, as it works on the “set it and forget it” principle. As the name suggests, the electric power steering is connected to the on-board 12 V power system (with a maximum current of 50A) and the steering.

Let's consider a domestic EUR for the VAZ 2107 produced in Makhachkala.

Electric power steering is provided for the VAZ 21214, but it is quite suitable for the entire range of classics, including the VAZ 2107. It is attached instead of a regular steering column.

The principle of operation is the creation of additional torque by the electric motor, acting synergistically and synchronously with the driver’s hands. The steering wheel gain is 5.7. This means that the turning effort, in which the driver “put in” 20 kg of his own force, now requires 3.5 kg.

Operating principle

The ECU is a modular design built into the steering column. The module itself includes two main components:

• Electrical unit of synchronous nature;
• Controller.

It is important for VAZ 2110 owners to install such a system if they want to use wide wheels that differ from the factory ones by several sizes. And in general, if you want to feel real comfort and enjoy driving, and not turn the steering wheel with all your might, install an electric booster. He will react to even the slightest touch.

Complete with steering wheel

Although this is against the rules, now you no longer have to hold the steering rim with both hands. The car will become more than obedient and controllable when moving with one hand.

Numerous tests have shown that cars with powertrain are safer on the roads.

Technical specifications

When installing the EU on your VAZ 2110, it is important to take into account its technical characteristics. The node has certain requirements in this regard. Therefore, for the “ten” you should choose a device that corresponds to the parameters specified in the table.

Parameter

Index

Maximum torque compensation

Amount of current consumed (at Mmax 35 Nm and steering wheel rotation speed of 360 degrees in 1 sec)

Operating temperature range

from -40 to +85 degrees Celsius

Electronically controlled motor

With three passes

Made from 40X steel

Made from carbon fiber grade UPA 6/30-2

After familiarizing yourself with the specified parameters, you can choose the electric booster that suits your car. Do not forget that this is an electrical unit, so you should work with it very carefully.

Installation benefits

If you decide to install a modern electric booster on your VAZ 2110, you need to find out in advance what benefits you will receive from such manipulation. This will further convince you of the correctness of the decision.

1. Installation does not require extensive experience or knowledge. Do it yourself in a few hours of work.
2. The unit requires a small amount of electricity to operate. This will not negatively affect the condition of the battery or other components of the car.
3. EU has no negative impact on the environmental friendliness of exhaust.
4. Positively affects parametric indicators.
5. Does not require complex and regular maintenance during operation. Install it and enjoy the comfort.
6. Under low-temperature conditions, the electric booster works better than the hydraulic booster.

Some people believe that the operation of the electric booster is slightly weaker compared to the hydraulic booster. But in practice and on our roads you will not feel this. Therefore, this only drawback is more than controversial.

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