Title
In order to independently understand the car, you need to have knowledge on its device and the principles of the work of certain elements. Injector VAZ 2109 is a combination of electronic elements that ensure uninterrupted operation of the engine. Without it, it becomes just a useless breast metal. Injector VAZ 2109 is the engine control system, so wiring and individual items must be working, and their operation is properly adjusted.
Device
Electroscham VAZ 2109 with distributed fuel injection is much more complicated by carburetor models. This is quite logical, since the injector itself assumes the presence of electronic devices. Any electrical scheme is designed to solve a number of tasks. The diagram of the VAZ 2109 distributed injection system solves the following tasks:
- Transmission of signals about the status of parameters;
- Transmission of control pulses;
- Electrical protection devices;
- Protection of the system from closure.
Based on the functions performed, the system design must be necessary and sufficient to implement them.
Transfer of signals of the status of parameters and control pulses
The electrical signal in the VAZ 2109 motor control system is transmitted to the electronic block on the wires that have the appropriate color marking. This makes it easier to read the electrical circuit and search for the desired wire. Required conditions for ensuring high-quality signal transmission are:
- Required cross-section of wires;
- Minimum resistance of contact connections;
- Electrical strength of insulation conductors.
Engine operation, and consequently, the dynamic characteristics of the VAZ 2109 engine, determines which state is the state.
Reducing the cross section of the conductor reduces the power of the signal transmitted by them, increases its temperature. Even if the outside of unnoticed, the destruction lived, it does not mean that it is not.
During the operation of the car, the wiring is exposed to destructive factors. Over time, the contacts occurs. For this reason, their resistance increases, which causes the need for periodic cleaning.
Distorted signals make inaccuracy or interruptions to the work of the entire VAZ 2109 system. In order to ensure noise immunity, the oxygen sensor, detonation, the position of the crankshaft and the anti-theft block is equipped with shielded wires.
Electrical protection elements
The failure of the injector device is fraught with a replacement to a new one. This is accompanied by material costs. If there are several such devices, then expenses increase repeatedly. In addition to replacement, you may need to configure. In this case, in the absence of the necessary knowledge, contact specialists will be necessary.
The fuses of the VAZ 2109 distributed injection system have fewer than the rest of the wiring, section. Therefore, they burn out when the current exceeds their nominal, thereby protecting the insulation of the wires and the elements of the system from poor consequences. The injector electroscheme contains the following fuses:
- The main relay;
- Electrical fan cooling;
- Baszonasos
Dropped fuses should be replaced and be sure to find, eliminate the cause that led to this.
However, not only fuses provide protection, but also electromagnetic relays. The electroplating of the signals allows you to divide the low-current and power chains. This property plays a large role in control. The system contains the main relay, the fuel pump relay and the cooling radiator electric fan.
Protection against closure
Car wiring is characterized, among other things, the electrical strength of isolation. The latter depends on the state of its material. Over time, insulation becomes fragile and microscopic cracks appear. When testing, the wiring can be serviceable, but during the movement of the car to break through the mass. Circuit is possible between two or several wires.
It is necessary to periodically look under the hood of the car and check the insulation status, connector. When detectable wires are detected, their further destruction and closure should be prevented. This can be done with a tape or heat shrinkage. If the wire literally hangs on the hair, then it is necessary to clean the ends, to lose and solder. After that, it is good to isolate the connection. Weak contact in the connectors must be eliminated. You can use passage. Oxidized surfaces clean with a special tool, you can WD-40. Good engine crankcase protection closes wires from moisture from entering, so it is necessary. Oil contaminated insulation faster collapsing. The use of corrugations to protect against it will be worth it. It is better to replace the old wiring, since in this case the risk is increasing.
