Mazda 6 since 2002
1. Operation and car maintenance
2. Engine
2.1. General description of new engines of the L8, LF and L3 models
2.2. Mechanical part of engines
2.3. Appendix 1
2.4. Appendix 2
2.5. Appendix 3
2.5.1. Control system
2.5.2. Principle of work and purpose of some components of a control system
2.5.2.1. Sensor of provision of a cam-shaft (SMR)
2.5.2.2. Sensor of provision of a cam-shaft (SKR)
2.5.2.3. Regulator of idling (IAC)
2.5.2.4. Management of an air line with variable characteristics (VAD)
2.5.2.5. Start-up system with variable characteristics (VIS)
2.5.2.6. A control system of hashing of air on an admission (VTCS)
2.5.2.7. Management of the mechanism of change of phases of a gazoraspredeleniye
2.5.2.8. Management of fuel injection
2.5.2.9. Management of switching off of central air of air
2.5.2.10. Management of the electric fan
2.5.2.11. Local network of the controler (CAN)
2.5.2.12. System of onboard diagnostics
2.5.3. Codes of malfunctions
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
 






2-5-2-6-sistema-upravleniya-peremeshivaniya-vozdukha-na-vpuske-vtcs.html

2.5.2.6. A control system of hashing of air on an admission (VTCS)

The VTCS system puts in action a zaslonka in an inlet collector for increase in speed of a stream of air on an admission and creations of turbulences in the combustion chamber for improvement of the dispersion entered into the cylinder of fuel. The number of emissions of CH and CO with the fulfilled gases thus decreases at small loadings.
The PCM block turns on the electromagnetic VTCS valve which closes a zaslonka in an inlet collector if the following conditions are satisfied:
– frequency of rotation of the engine – is lower than 3750 mines-1;
– the corner of opening of a butterfly valve – is lower than 1500 mines-1 – the butterfly valve is closed, between 2000 mines-1 and 3000 mines-1 – 26–29 %, 2500 mines-1 are higher – the butterfly valve is completely open;
– the temperature of cooling liquid is lower than 63 °C.
The PCM block switches off the electromagnetic VTCS valve for preservation of starting qualities and stability at start of the engine and during 0,2 with the ambassador of start-up of the engine.

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2.5.2.5. Start-up system with variable characteristics (VIS)
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2.5.2.7. Management of the mechanism of change of phases of a gazoraspredeleniye