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EVAPORATIVE EMISSION CONTROL SYSTEM
1.
Disconnect the vacuum hose (red stripe) from the throttle
body, and connect a manual vacuum pump to the vacuum
hose.
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Checking
2.
Check the following points when the engine is cold [coolant
temperature 60
0
e
(140°F) or below] and when it is warm
[coolant temperature 70
0
e
(158°F) or higher].
When engine is cold
Engine operating
condition
Applying vacuum
Result
Idling
3,000 rpm
When engine is warm
Engine operating
Apply vacuum
Result
condition
Idling
50 kPa (7.3 psi)
Vacuum is maintained
Within 3 minutes Try applying
vac-
Vacuum is released
after engine start
uum
3,000 rpm
After 3 minutes
50 kPa (7.3 psi)
Vacuum will be main-
have passed after
tained momentarily,
engine start
a!ter which, it will
3,000 rpm
be released.
29-15
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