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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mazda 3 (2003 release)

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Mazda 3
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Mazda
3
Operation and maintenance of car
Engine
General description new engines models L8, LF, L3
The mechanical part of engines
Appendix 1
Annex 2
Appendix 3
Control system
The principle of operation and the appointment of some components of the control system
Camshaft position sensor (CMP)
Camshaft position sensor (CKP)
The regulator of idling (IAC)
Management duct with varying characteristics (VAD)
Start-up system with variable characteristics (VIS)
The control system of mixing the intake air (VTCS)
Control valve timing change mechanism
Fuel injection control
Office off the air conditioning system
Management of the electric fan
Controller Area Network (CAN)
System of onboard diagnostics
Fault codes
Engine Z6 - mechanical part
Lubrication system
Cooling system
Intake system
Fuel system
Exhaust and Emission
Ignition system
Control system
Tables
Transmission
Chassis
Steering Gear
Brakes
Onboard electric
Body
 


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Management duct with varying characteristics (VAD)



The control system opens the shutter VAD VAD air filter only at high engine speeds so that engine power is not reduced at high speeds due to insufficient air flowmeter. The PCM includes a solenoid control valve VAD system to open the damper if the following conditions are met:
- Coolant temperature - above 70 ?� C;
- Engine speed - 5800 min-1 above;
- The opening angle of the throttle valve - more than 50%.




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The regulator of idling (IAC)
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Start-up system with variable characteristics (VIS)

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