1990-2001 of release
Repair and car operation
+ Identification numbers of the car
+ Options and routine maintenance
+ The engine
+ Cooling and heating systems
- The power supply system and release
Сбрасывание pressure in the power supply system
Removal and installation of the case of a throttle
Removal and installation of a fuel highway and injection injectors
Check of a condition and replacement of fuel lines and them штуцерных connections
Check of serviceability of functioning of injectors
Removal and installation of a regulator of pressure of fuel
Removal and installation of a safety valve of a fuel tank
Removal and installation of a fuel tank
Cleaning and repair of a fuel tank - the general data
Check of serviceability of functioning of the fuel pump, measurement of pressure of fuel
Removal and installation of the fuel pump/gauge of the expense of fuel
Removal and installation of assemblage of an air cleaner
+ Engine electric equipment
+ Control systems of the engine
+ Manual transmission
+ Coupling and трансмиссионная a line
+ Brake system
+ Suspension bracket and steering
+ Onboard electric equipment
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The power supply system and release
The general information and safety measuresThe power supply system consists of the fuel tank placed in it of the electric fuel pump, main relay EFI, injectors of injection, a regulator of pressure of fuel, assemblage of an air cleaner and the throttle case. All models are equipped by electronic system of the distributed injection of fuel (MPI).
System of the distributed injection of fuel (MPI)
In considered system for management of fuel injection through injectors directly in inlet port of each of chambers of combustion of the engine electric impulses of accurately limited duration are used. The moment and duration of time of opening of each of injectors supervises the electronic module of management (ЕСМ) systems. ЕСМ continuously traces working parametres of the engine and on the basis of the analysis of the arriving information defines the demanded volume injected in each of inlet ports of fuel. In parallel ЕСМ exercises administration also installations of turns of idling and a corner of an advancing of ignition. The throttle case serves only for management of giving in air power supply system. Whereas each of cylinders is equipped own, located in immediate proximity from the inlet valve, an injector, the given scheme provides possibility of very exact management with structure of an air-fuel mix.
Fuel arrives to injectors under the constant pressure which size exceeds pressure in the inlet pipeline. The regulator of pressure of fuel supports constant difference of pressure between entrance and target section of each of injection injectors. The regulator is equipped запорным by the valve, a sensitive element мембранного type and the loaded spring. Management of pressure difference is carried out дросселированием fuel in a backlash between запорным the valve and its saddle. Surplus of fuel on a returnable line is taken away back in a fuel tank.
As fuel moves on each of injectors with a constant pressure, the quantity of fuel injected into the engine is defined exclusively by duration of opening of the injector which management carries out ECM. The Same module watches conformity of phases газораспределения and ignitions.
Демпфер pulsations of pressure of fuel (if that is provided) serves for elimination of the wave formation arising in gasoline pipe lines during the moments of opening and closing of injectors of injection. Демпфер it is equipped by the air and fuel chambers divided by a membrane which actually and makes clearing of elastic fluctuations in a fuel stream.
The quantity of air submitted to the engine is defined by position throttle заслонки and frequency of rotation of a cranked shaft. The gauge of measurement of a stream of air established in an inlet path delivers to the module of management the information on which basis ЕСМ defines demanded duration of opening of injectors.
If the return is not stipulated by character of a carried out problem before to start service of components of the power supply system without fail disconnect a negative wire from the battery. Always hold on call the fire extinguisher of a class of Century
Before removal of components (injectors, a fuel highway, a pressure regulator) a/detachment of lines of a fuel path do not forget to dump pressure in the power supply system. Try not to suppose fuel hit on open sites of a body. Subject рассоединению штуцерный it is necessary to wind a socket with rags in avoidance разбрызгивания fuel staying under residual pressure. At once collect the spilt fuel the paper towels which sufficient stock always should be near at hand.
The fuel pump and gasoline pipe lines
Giving of fuel from a petrol tank in system of injection and return of its surplus back in a petrol tank is carried out on two metal lines laid under the bottom of the car. Погружной the electric fuel pump роторного type is located in a petrol tank and united in uniform assemblage with the block of the gauge of the expense of fuel. On a gasoline pump exit the fuel filter providing a filtration of particles in the size to 20 ÷ 30 micron is provided.
The system of return of fuel evaporations carries out tap of steams of fuel back in a petrol tank on a separate returnable line.
The fuel pump continues to function during all operating time of the engine, i.e. while ЕСМ receives basic impulses from electronic system of ignition (see the Head the engine Electric equipment). Later 2 ÷ 3 seconds after a stopping delivery of basic impulses the pump stops.
At отпускании штуцерных sockets use two wrenches what to allow to avoid undesirable and dangerous deformations of fuel lines. Strictly watch observance of standard requirements to efforts of a tightening of sockets. Remember that sealing rings штуцерных connections at joining of the last are subject to replacement without fail.
System of release of the fulfilled gases
The system of release of the fulfilled gases consists of the final collector equipped with the oxygen gauge (ов), a reception pipe, каталитического the converter, and the muffler.
The Katalitichesky converter is the basic component of system of decrease in toxicity of the fulfilled gases. The monoblock converter can be applied in a combination with three-functional редукционным (see in the Head of the Control system of the engine more in detail).