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)
      Replacement of the sensor of provision of a butterfly valve (TPS)
      Replacement of the sensor of absolute pressure of air in an inlet collector on models since 2001
      Replacement of the sensor of a measuring instrument of a consumption of air (MAF) on models since 2001
      Replacement of the sensor of the air temperature arriving in the engine (IAT) on models till 2001
      Replacement of the sensor of temperature of cooling liquid (ECT)
      Replacement of the sensor of an angle of rotation of a cranked shaft (CKP)
      Replacement of the sensor of provision of a camshaft (CMP) on models since 1998
      Replacement of sensors of oxygen (O2S) and toplivovozdushny mix (A/F Sensor)
      Replacement of sensors of a detonation
      Replacement of the sensor of speed of the car (VSS)
      Replacement of the valve of a control system with frequency of rotation of idling (IAC)
   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>> Sensors and valves of system of injection of fuel (EFI)>> Replacement of sensors of a detonation
Replacement of sensors of a detonation is necessary for carrying out on the cold engine.
The engine can be damaged as a result of a detonation arising at combustion of a fuel mix. The high extents of compression improving fuel profitability of the engine and change of quality of used fuel, increase tendency of the engine to a detonation, i.e. explosive combustion of a fuel mix in engine cylinders. The sensor of a detonation reacts to high-frequency fluctuations of the block of cylinders and transforms them to the electric signals which size increases at increase in a detonation. On the basis of these signals the control unit the engine displaces the ignition moment towards delay, during a certain number of steps then gradually returns in initial situation. The sensor of a detonation is located on the back party of the block of cylinders, is direct under a block head.
Replacement of sensors of a detonation carry out as follows:
– switch off ignition and disconnect a "weight" wire from the storage battery;
– merge cooling liquid from cooling system;
– on models till 2001 and on all-wheel drive models remove an inlet collector;
– on front-wheel models till 2001 lift a forward part of the car and fix on support;

Fig. 7.19. The detonation sensor on models till 2001: 1–electric socket; 2–detonation sensor


Fig. 7.20. The detonation sensor on models since 2001: 1–electric socket; 2–detonation sensor


– disconnect the electric socket, turn out and remove the detonation sensor (fig. 7.19, 7.20) .
At installation of the sensor of a detonation put on its carving a hermetic layer.
Screw the sensor and tighten it the moment of 44 N • m.

       NOTE
The carving of the new sensor is already covered with hermetic.

Further installation make in sequence, return to removal. After installation of the sensor fill in cooling liquid in cooling system.