ENGINE MECHANICAL
-
Intake Venturi Svstem
(LN
2L-T
only)
EM-31
(Others)
d
PREPARATION
Using
a
3-way connector, connect a vacuum gauge to hose
between the actuator and
VSV.
CHECK THROTTLE VALVE
(a)
Start the engine and check that the vacuum gauge
indicates zero vacuum.
(b) Check. that when the starter switch
is
turned OFF
(engine stopped) from idling condition, vacuum
operates on the diaphragm chamber so that the rods
return.
(c)
Check that after the starter switch
is
turned OFF, the
rods gradually return.
INSPECTION OF INTAKE VENTURI SYSTEM
COMPONENTS
1.
INSPECT VENTURI
(a)
Fully close the throttle valve, and check that
it
re-
turns smoothly.
(b) (Austria)
Using the hand-help vacuum pump, check that when
vacuum
is
gradually applied to diaphragm chamber
B
of the actuator, the throttle valve opens half-way.
(c)
(Austria)
Using the hand-help vacuum pump check that when
vacuum
is
gradually applied to diaphragm chambers
A
and
B
of the actuator, the throttle valve fully opens.
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