nsxe11119a.pdf

Chamber Volume Control System
Description
Satisfactory power performance is achieved by closing and opening the chamber volume control valves. High torque at
low RPM is achieved when the valves are closed, whereas high power at high RPM is achieved by when the valves are
opened.
CHAMBER VOLUME CONTROL SOLENOID
VALVE ON
ENGINE RPM IS ABOVE 4,800 rpm
OPEN
BLK/YEL
To No. 2 FUSE
CLOSE
CHECK
VALVE
VACUUM
TANK
RED/BLU
ECU
CHAMBER
VOLUME
CONTROL
DIAPHRAGM
CHAMBER
VOLUME
CONTROL
VALVE
(cont’d)