Honda Acura NSX 1991 Service Manual page 295

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.
CLOSE
CHAMBER
VOLUME
CONTROL
DIAPHRAGM
CHAMBER VOLUME CONTROL SOLENOID
C K
V E
VALVE OFF
To No.
TANK
VOLUME
CONTROL
2 FUSE
II-119