Boost Pressure Control Vacuum Transducer (Y31/5)

Position
Model 140






Model 168






Model 202






Model 202.128/188 low emission D3






Model 210







Task
Controlling vacuum to the boost pressure control vacuum unit

Function
The boost pressure control vacuum transducer (Y31/5) is actuated with a variable current by the engine control module.
- Signal from control module:
Controlled vacuum to connection (3)
- No signal from control module:
Connections (1) and (3) linked - air admitted to boost pressure control vacuum unit