EMISSION
CONTROL
SYSTEM
.h
AIR SUCTION FILTER ELEMENT
1.
Replace the air suction filter element.
Replacement intervals: Two years or
40,000
km
run-
ning, whichever comes first
Reolacement intervals:
Two
years
or 40.000
krn
running,
whichever comes first
Fig.
12-40
WM-12064
EGR
(EXHAUST GAS RECIRCULATING) SYSTEM
To
air cleaner
Fig.
12-41
WM-'2045
EGR
SYSTEM CHECK
When
engine
is
cold:
(Temperature
of cooling
water
is
above
29°C):
1
.Connect a vacuum gauge between the modulator valve and
the EGR valve.
2.
Start the engine. If the po~nter
of
the vacuum gauge
registers between zero and a negative pressure of
100
mm Hg when the engine is Idling or even when the engine
revolution speed exceeds
3000
rpm, it indicates that the
EGR system is functioning properly.
Fig.
12-42
WM-1
~46
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