Tayota Kamri's repair since 2001
1. Operation manual and to maintenance of the car
2. Engine
2.1. Petrol engines models 1AZ-FE and 2AZ-FE
2.2. Mechanical part of engines of models 1AZ-FE and 2AZ-FE
2.3. Petrol engine of model 1MZ-FE
2.3.1. General information
2.3.2. Mechanism of the drive of valves
2.3.3. Lubrication system
2.3.4. Cooling system
2.3.5. System of an admission and vyspusk
2.3.6. Fuel system
2.3.7. System of ignition
2.3.8. Control system of the engine
2.3.9. Basic elements of a control system of the engine
2.3.9.1. Sensor of an angle of rotation of a bent shaft
2.3.9.2. Sensor of provision of a cam-shaft
2.3.9.3. Sensor of provision of a pedal of management of fuel supply
2.3.9.4. EFI system (Electronic system of injection of fuel)
2.3.9.5. The ETCS-i system (An intellectual control system of a butterfly valve with the electric drive)
2.3.9.6. ACIS (Acoustic management of system of an admission)
2.3.9.7. The operating admission air valve
2.3.9.8. VSV (Vacuum valve)
2.3.9.9. Vacuum tank
2.3.9.10. The operating valve of an admission is closed (VSV is included)
2.3.9.11. The operating valve of an admission is open (VSV is switched off)
2.3.9.12. Air inlet control system
2.3.9.13. Diagnostics of a control system of the engine
2.3.9.14. Changes (in comparison with the previous Camry model)
2.3.9.15. Management of reliability
2.3.9.16. Compensation of failures of the sensor of provision of a pedal of management of fuel supply
2.3.9.17. Compensation of failures of the sensor of provision of a butterfly valve
2.4. Mechanical part of the engine of model 1MZ-FE
2.5. Appendix
2.6. Tables
3. Transmission
4. Running gear
5. Steering
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment




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2.3.9.4. EFI system (Electronic system of injection of fuel)

The system of injection of fuel with electronic control like L directly determines the mass of air on an admission by the sensor of a consumption of air of termoanemometrichesky type. The independent system of injection (in which fuel is injected into each cylinder once for each two turns of a bent shaft) is applied. Besides, at launch of the engine the group injection is used (fuel is injected once into two cylinders for each turn of a bent shaft). There are two operating modes of system of injection of fuel:
a) synchronous injection at which the basic duration of injection is corrected on signals of sensors so that the injection of fuel happened always at a certain provision of a bent shaft;
b) asynchronous injection at which the injection of fuel is made at detection of inquiries on signals of sensors irrespective of an angle of rotation of a bent shaft.

Fig. 2.210. Scheme of the EFI system (Electronic system of injection of fuel)


Besides, the system makes a fuel cut-off at which the fuel injection temporarily stops according to traffic conditions for protection of the engine and increase in fuel profitability.

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2.3.9.3. Sensor of provision of a pedal of management of fuel supply
following page"
2.3.9.5. The ETCS-i system (An intellectual control system of a butterfly valve with the electric drive)