Intake-Air System
WL-C Engine
Variable Swirl Control Shutter Valves
•
The BT-50 uses VSC shutter valves, which reduce the exhaust emissions at low engine
speeds. The operation is similar to that of the VSC shutter valves used on the Mazda6
pre F/L with 2.0 MZR-CD engine. The VSC shutter valves are located in the secondary
intake ports.
•
The VSC shutter valves are operated from idle speed to 2,300 rpm.
Vacuum Chamber
•
The vacuum chamber reduces vacuum fluctuations in the vacuum supply line for the
VBC and EGR solenoid valve.
BT-50_01025
1
To vacuum pump
3
Vacuum chamber
2
To VBC solenoid valve
4
To EGR solenoid valve
01-24 Service
Training
BT-50
Summary of Contents for B-Series
Page 1: ...Training Manual Mazda BT 50 NMT 009 ...
Page 8: ...Table of Contents Notes Service Training BT 50 ...
Page 24: ...General Information Notes 00 16 Service Training BT 50 ...
Page 26: ...WL C Engine Engine Overview BT 50_01002 01 2 Service Training BT 50 ...
Page 66: ...Control System WL C Engine System Overview BT 50_01037 01 42 Service Training BT 50 ...
Page 80: ...Control System WL C Engine Notes 01 56 Service Training BT 50 ...
Page 86: ...Wheels and Tyres Suspension Notes 02 6 Service Training BT 50 ...
Page 131: ...Body Accessories Lighting System Wiring Diagram BT 50_09028 Service Training BT 50 09 13 ...
Page 144: ...Control System Body Accessories Wiring Diagram BT 50_09027 09 26 Service Training BT 50 ...