|
|
Subaru Forester1997-2005 of releaseRepair and operation of the car |
|
|
Subaru Forester + Subaru Forester cars + Maintenance instruction + Routine maintenance + Engine + Cooling systems, heating + Power supply system and release + Engine electric equipment - Control systems of the engine Specifications System of onboard diagnostics (OBD) - the principle of functioning and codes of malfunctions. Signals in chains of management ESM - the general information, assessment of a state and replacement Information sensors, the relay and actuation mechanisms - the general information System of catching of fuel evaporations (EVAP) System of recirculation of the fulfilled gases (EGR) System of the operated ventilation of a case (PCV) Conductor of a jellied mouth of the fuel tank The catalytic converter - the general information, check of a state and replacement + Gear shifting box + Coupling, transmission line + Brake system + Suspension bracket and steering + Body + Onboard electric equipment |
System of catching of fuel evaporations (EVAP) General informationThe EVAP system accumulates the fuel evaporations accumulating in a power supply system during the parking of the car and provides a conclusion them to the inlet highway for burning in the course of normal functioning of the engine. Scheme of functioning of system of catching of fuel evaporations (EVAP) Improvement of system is made continuously in process of toughening of requirements imposed to environment protection. The coal adsorber, the electromagnetic valve of management of an adsorber purge, the locking valve, connecting lines and so forth are a part of system. The fuel evaporations accumulating in a tank are removed in a coal adsorber on vaporizing lines. The locking valve is built in fuel lines. Control of functioning of the valve of a purge of an adsorber is exercised by ECM, choosing the most optimum moment for a purge, proceeding from working parameters of the engine, and also information delivered by sensors of temperature and fuel consumption. The electromagnetic valve of management of pressure is switched on in the vaporizing line of the fuel tank and serves for control of pressure/depression in a tank on the basis of the signals given on ECM by pressure sensor installed in a tank. Locking fuel valve On all-wheel drive models the locking valve is built in directly a vaporizing tube of a cover of the fuel tank. Rise in level of fuel in a tank leads to locking of an opening in a cover, leaving it the only exit through a vaporizing tube in a coal adsorber. Design of the locking fuel valve
Cover of a jellied mouth of the fuel tank The safety valve which is built in a cover of a jellied mouth serves for prevention of education in a tank of excessively deep depression owing to violation of passability of vaporizing lines. In normal conditions the cover closes a mouth absolutely hermetically due to the rubber consolidation pressed on all perimeter of a mouth and also thanks to the fact that the valve (A) remains densely pressed by a spring to the saddle. Design of the safety valve of a cover of a jellied mouth of the fuel tank
At increase of depth of depression in a tank atmospheric pressure wrings out a spring down that leads to opening of the valve. As a result pressure is leveled because in a tank external air gets. Coal adsorber General information The coal adsorber is filled with absorbent carbon and serves for temporary accumulation of fuel evaporations and is blown on ECM signal when opening the special electromagnetic valve (see below). From an adsorber fuel evaporations come in to the inlet pipeline and are burned in the course of normal functioning of the engine. Design of a coal adsorber
Removal and installation Installation is made upside-down. Track that fixture was tightened with the required effort (23 ± 7 Nanometers). Electromagnetic valve of management of a purge of a coal adsorber General information
Removal and installation
Installation is made upside-down. Track that fixture was tightened with the required effort (15.7 ± 1.5 Nanometers). Dvukhkhodovy valve The double-thread valve is switched on in the vaporizing line connecting a coal adsorber to the fuel tank. Design of the double-thread valve
When pressure in a tank exceeds some established value developed by a spring effort is overcome and the valve opens, at the same time being in a tank under pressure of evaporation are taken away in an adsorber where accumulate in a filler time. When lowering pressure the valve is closed, however the air getting into system through entrance port of an adsorber continues to get into a tank through a small opening in a valve end face, preventing formation of excessive depression. Electromagnetic valve of management of pressure The valve is switched on in the vaporizing line connecting the fuel tank to a coal adsorber and allows ECM to exercise control of pressure in a tank. Design of the valve of management of pressure
At the working ECM engine on a signal from the tank of the sensor placed inside traces pressure in a tank. At excess by this pressure of some extreme value the module of management issues the special command for movement of a plunger in the considered valve, carrying out thereby dumping of pressure. At the killed engine the valve works as the ordinary double-thread valve (see above). Electromagnetic valve of management of ventilation The ventilating valve is installed in the inlet port of an adsorber, connecting its internal capacity to the atmosphere. Design of the electromagnetic valve of management of ventilation
In the normal state the valve is open and external air freely gets into an adsorber. At identification of signs of leakage of fuel evaporations in the atmosphere of ECM gives a signal on closing of the valve, at the same time its rod moves to the right, blocking entrance port of an adsorber. Air filter The fuel filter is installed in the inlet port of the electromagnetic valve of management of ventilation of an adsorber and serves for purification of the last air which is soaked up inside. Design of the air filter
|
|
||||||||||||||||||||||||||||||||||