Repair and Toyota Corolla car operation - 6. System of decrease in toxicity//Toyota Corolla of 1992-1998 /

Toyota Corolla

1992-1998 of release

Repair and car operation



Toyota Corolla
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Systems of cooling, heating
+ 5. Fuel, exhaust systems
- 6. System of decrease in toxicity
   6.1. Specifications
   6.2. Electronic control system
   6.3. Electronic control unit
   + 6.4. System of onboard diagnostics
   + 6.5. Sensors of system of automatic control of the engine
   6.6. Catching system паров gasoline
   6.7. System retsirkulyatsiya (EGR system)
   6.8. System of compulsory ventilation of a case (PCV system)
   6.9. Catalytic converter
+ 7. Transmissions
+ 8. Coupling and semi-axes
+ 9. Brake system
+ 10. Suspension bracket and steering
+ 11. Body
+ 12. Electric equipment
.



6. System of decrease in toxicity

GENERAL INFORMATION

Devices of systems of decrease in toxicity and engine management (for engines of 1,8 l)

1. Sensor of an angle of rotation of a cranked shaft
2. The sensor of absolute pressure on a soaking-up collector (MAP sensor)
3. Electropneumovalve (EGR systems)
4. Vacuum distributor of EGR system
5. Valve of a retsirkulyatsiya of EGR system
6. Sensor of an angle of rotation of a butterfly valve
7. Diagnostic socket
8. The resonator of a soaking-up collector
9. Control air valve of idling (IAC)
10. Sensor of concentration of oxygen

Information label of VECI

In information label of VECI such important data, as type of the system of decrease in toxicity established on the car, frequency of turns of idling and data on installation of the moment of ignition are specified.

Scheme of distributing of vacuum hoses

On a label the scheme of distributing of vacuum hoses also contains.

The cars considered in this Management, are equipped with several systems of decrease in toxicity of exhaust gases. Concrete execution of system of protection of environment is defined by the territory of sale of the car (cм. fig. Devices of systems of decrease in toxicity and engine management (for engines of 1,8 l)). The specified systems treat:
       – system of compulsory ventilation of a case PCV system);
       – catching system паров gasoline (EVAP system);
       – system of a retsirkulyatsiya of exhaust gases (EGR system);
       – threefold catalytic converter (TWC);
       – system of electronic injection of fuel (EFI system).

Sections of this chapter consist of the general description, the description of methods of checks which it is possible to execute independently, and descriptions of a replacement procedure of details of the specified systems (at replacement possibility).

Before drawing a conclusion on malfunction of system of decrease in toxicity carefully check work of fuel system (see section 5) and ignition systems (see subsection 3.3.4). For diagnostics of some devices of system of decrease in toxicity certain skills, and also special tools and the equipment are required. If it will become clear that check and repair of system cannot be executed independently, address in a workshop of car-care center of the dealer, or in a specialized workshop.

It, however, does not mean that service and repair of system of decrease in toxicity is difficult and remote procedure. You can quickly and easily execute a set of checks and procedures on periodic service of systems by means of a standard tool kit and measuring devices.


Prevention

The most widespread reason of malfunctions in system of decrease in toxicity are caused by easing or damage of electric sockets or vacuum hoses therefore first of all check a condition of these details.


Strictly observe all precautionary measures specified in this Chapter. It should be noted that appearance and an arrangement of devices on your car can differ from represented on pictures because of the annual changes brought by the manufacturer. The cars realized in some territories, are completed with information label about type and the device of system of decrease in toxicity (VEC label), and also the scheme of distributing of vacuum hoses pasted on inside of a cowl (see fig. Information label and fig. Scheme of distributing of vacuum hoses). The label contains standard data on the main harmful components released into the atmosphere and the description of an order of adjustment of various units. Also the scheme of distributing of vacuum hoses with designation of elements of system of decrease in toxicity is provided. At service of the engine or systems of decrease in toxicity, standard data of a label always should be verified with the last accepted standards.