Toyota 4 Runner/Hilux/Surf

1987-1998 of release

Repair and operation of the car



Toyota 4ranner
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Systems of heating, ventilation
- 5. Fuel and exhaust systems
   5.1. Specifications
   5.2. Order of a decompression of fuel system
   + 5.3. Fuel pump and pressure of fuel
   5.4. Hoses and connections
   5.5. Fuel tank
   5.6. Fuel pump
   5.7. Fuel level sensor
   5.8. Air filter
   5.9. Cable of a butterfly valve
   + 5.10. System of electronic injection of fuel (EFI system)
   + 5.11. Units of system of injection of fuel
   5.12. Service of the exhaust system
   - 5.13. System of decrease in toxicity of exhaust gases
      5.13.1. Specifications
      5.13.2. Arrangement of devices of systems of decrease in toxicity
+ 6. Transmissions
+ 7. Transmission elements
+ 8. Brake system
+ 9. Suspension bracket and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electrical circuitries



5.13. System of decrease in toxicity of exhaust gases

GENERAL INFORMATION

Places of installation of units of standard system of decrease in toxicity on the 4-cylinder engine of 2,7 l

1. Recirculation valve
2. The vacuum valve operating
recirculation valve
3. Vacuum distributor,
managing director of the recirculation valve
4. Converter

5. Oxygen sensor
6. Control valve
7. A tank with an absorber of vapors of gasoline
8. The vacuum distributor operating the tank valve

Vacuum hoses on the l V6 3,4 engine

1. Zolotnik of ventilation of a case
2. Recirculation valve
3. The vacuum valve operating the recirculation valve
4. The vacuum distributor operating the recirculation valve
5. Sensor of vapors of gasoline
6. Control valve
7. The vacuum distributor operating the tank valve
8. A tank with an absorber of vapors of gasoline
9. Oxygen 2 sensor

The cars considered in this manual are equipped with several systems of decrease in toxicity of exhaust gases. Concrete execution of system of environment protection is defined by make of the car and the territory of its sale. Treat the specified systems:

 – system of compulsory ventilation of a case (PCV system),
 – system of catching of vapors of gasoline (EES-system),
 – system of recirculation of exhaust gases (EGR system),
 – catalytic converter (TWC),
 – the pulsation system of a dookisleniye of exhaust gases (PAIR system).
 – onboard system of diagnostics (OBDII system).

The concrete type of systems with the indication of adjusting data and distributings of vacuum hoses is specified on the podkapotny plate (VECI plate).

The failure of sensors and devices of some systems of decrease in toxicity can influence operational characteristics of the engine. Reading of diagnostic codes and exact establishment of the concrete faulty device is possible thanks to application on the car of system of onboard diagnostics OBDII (since 1996). For reading in this system of diagnostic codes of malfunction and their identification special expensive scanners therefore it is expedient to carry out all types of works on diagnostics, repair and adjustment in car service are required.