4. INSPECT THROTTLE OPENER
A. Warm up engine
Allow the engine to warm up to normal operating
temperature.
B. Check idle speed
(See page EG2–27)
Idle speed:
800 ± 50 rpm
E. Check operation of VTV
(a) Set the DP setting speed in the same procedure as
above: (a) to (c).
(b) Remove your finger from the hole and check that the
engine returns to idle speed in approx. 1 second.
(c) Release the throttle valve.
(d) Check that the throttle opener is set.
Throttle opener setting speed:
900 – 1,800 rpm
if not as specified, replace the throttle body assembly.
C. Check throttle opener setting speed
(a) Disconnect the vacuum hose from the throttle opener,
and plug the hose end.
(b) Maintain the engine at 2,500 rpm.
F. Reinstall DP separator, filter and cap
HINT: Install the filter with the coarser surface facing
the atmospheric side (outward).
–ENGINE MFI SYSTEM
EG2–238
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