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

general info. full specifications. diagnostics. hints. tips. tricks

Home

Mazda
	3
		Operation and maintenance of car
		Engine
			General description new engines models L8, LF, L3
				The mechanical part of engines
				Variable valve timing mechanism
				Lubrication system
				Cooling system
				Fuel system
					Overview
					Intake system
					The main features of the duct with varying characteristics (VAD) (L3)
					The actuator system (VAD) (L3)
					Solenoid valve system (VAD) (L3)
					The check valve system (VAD) (L3)
					The fuel assembly
					The fuel pump unit
				Exhaust and Emission
				Electric motors
			The mechanical part of engines
			Appendix 1
			Annex 2
			Appendix 3
			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

printable version

Solenoid valve system (VAD) (L3)

Fig. 2.59. The solenoid valve system VAD: 1 - the power is on; 2 - the power is off; 3 - Channel A (to the atmosphere); 4 - channel B (in the actuator); 5 - Channel C (to intake manifold); 6 - spiral; 7 - plunger; 8 - a spring

The solenoid valve switches the intake manifold vacuum passage between the intake manifold and the actuator. When the power is turned on, the valve plug is pulled and opens a passage between the air channels A and B, which provides access to the atmospheric air valve actuator. When the power is turned off, the plunger back and forth between the air passage open channels B and C, which gives access to vacuum from the intake manifold to the actuator valve. Solenoid valve comprises a solenoid, a spring plunger and a filter (Fig. 2.59).

« previos page
The actuator system (VAD) (L3)

next page »
The check valve system (VAD) (L3)