RAV4 PAB4-Toyota Toyota
1. Car operation
2. Maintenance
3. Engines
4. Cooling and conditioning systems
5. Fuel system and system of production of the fulfilled gases
6. Ignition system
7. The monitoring system and decrease in toxicity of the fulfilled gases
   General information
   Technical characteristics
   System of onboard Diagnostics (OBD)
   Information sensors and executive stroystvo
   Codes of malfunctions of OBD-II system
   Control unit engine (PCM)
   Sensors and valves of system of injection of fuel (EFI)
   System of compulsory ventilation of Carter (PCV)
   System of a retsirkulyatsiya of the fulfilled gases (EGR) on models since 2001
   Catching system паров fuels (EVAP)
   Catalytic converter
8. Coupling
9. Transmission
10. Driveshaft and shaft of a drive of driving wheels
11. Brake system
12. Suspension bracket
13. Steering and running gear
14. Body
15. Electric equipment
Electric equipment schemes




Toyota RAV4>> The monitoring system and decrease in toxicity of the fulfilled gases>> System of compulsory ventilation of Carter (PCV)

Fig. 7.25. Scheme of compulsory ventilation of a case: 1–PCV valve; 2–karterny gases; 3–fresh air


The system of compulsory ventilation of a case provides a suction from a case of karterny gases and паров fuels in the inlet pipeline of the engine therefore pressure increase in a case because of penetration into it fulfilled gases and their emission in the atmosphere (fig. 7.25) is excluded . Karternye gases mix up with fresh air and via the valve of compulsory ventilation of a case move to an inlet collector.
The main components of system of compulsory ventilation of a case are the valve, the filter and vacuum hoses.
For support of frequency of rotation of idling the PCV valve limits a passed stream, when vacuum in an inlet collector the high. If break of the fulfilled gases in a case the engine big, for example, at wear of piston rings, the system of compulsory ventilation of a case directs karterny gases to the air filter where they are burned further in engine cylinders.
Check of the valve of compulsory ventilation of a case is given in section 2.