Honda Acura NSX 1991 Service Manual page 298

Air Intake System
Chamber Volume Control Valve -
Test
CAUTION: Do not adjust the chamber volume control
valve full-close screw. It was preset at the factory.
1 . Check the chamber volume control valve shaft for
binding or sticking.
2. Check the chamber volume control valve for
smooth movement.
3. Check the A of the chamber volume control valve
is in close contact with the stopper when the
bypass valve is fully open.
4. Check that 6 of the chamber volume control valve
is in close contact with the full-close screw when
the valve is fully closed.
with carbuie% ci&iner.
disassemble the intake manifold and check the
chamber volume control valve (page 1 l-l 23).
FULL-CLOSE