Mitsubishi Galant 9G. Manual — part 465
EMISSION CONTROL
TSB Revision
ENGINE AND EMISSION CONTROL
17-78
<3.8L ENGINE>
AK301810
EVAPORATIVE EMISSION
VENTILATION SOLENOID
INTAKE MANIFOLD
PLENUM
EVAPORATIVE EMISSION
PURGE SOLENOID
CHAMBER
EVAPORATIVE
EMISSION
CANISTER
*1
THROTTLE
BODY
FRONT
B : BLACK
*1:WHITE PAINT MARK
AB
B
B
B
B
B
EMISSION CONTROL
TSB Revision
ENGINE AND EMISSION CONTROL
17-79
VACUUM CIRCUIT DIAGRAM
M1173007100252
<2.4L ENGINE>
AK301813
B: BLACK
*1:RED PAINT MARK
THROTTLE BODY
INTAKE MANIFOLD
FROM
AIR CLEANER
TO
COMBUSTION
CHAMBER
EVAPORATIVE EMISSION
PURGE SOLENOID
(ON: OPEN)
EVAPORATIVE EMISSION
VENTILATION SOLENOID
(ON: CLOSED)
EVAPORATIVE EMISSION
CANISTER
AB
FUEL
TANK
B
B
B
B
B
B
B
CHAMBER
CHAMBER
*1
EMISSION CONTROL
TSB Revision
ENGINE AND EMISSION CONTROL
17-80
<3.8L ENGINE>
VACUUM HOSE INSTALLATION
M1173007200129
1. When connecting the vacuum hoses, they should be
securely inserted onto the nipples.
2. Connect the hoses correctly, using the VACUUM HOSE
ROUTING diagram as a guide.
AK301814
B: BLACK
*1:WHITE PAINT MARK
THROTTLE BODY
INTAKE MANIFOLD
FROM
AIR CLEANER
TO
COMBUSTION
CHAMBER
EVAPORATIVE EMISSION
PURGE SOLENOID
(ON: OPEN)
EVAPORATIVE EMISSION
VENTILATION SOLENOID
(ON: CLOSED)
EVAPORATIVE EMISSION
CANISTER
AB
FUEL
TANK
B
B
B
B
B
B
CHAMBER
*1
EMISSION CONTROL
TSB Revision
ENGINE AND EMISSION CONTROL
17-81
VACUUM HOSE CHECK
M1173007300171
1. Using the VACUUM HOSE ROUTING diagram as a guide,
check that the vacuum hoses are correctly connected.
2. Check the connection of the vacuum hoses, (removed,
loose, etc.) and confirm that there are no sharp bends or
damage.
POSITIVE CRANKCASE VENTILATION SYSTEM
GENERAL DESCRIPTION (POSITIVE CRANKCASE VENTILATION SYSTEM)
M1173005000293
The positive crankcase ventilation (PCV) system pre-
vents the escape of blow-by gases from inside the
crankcase into the atmosphere.
Fresh air is sent from the air cleaner into the crank-
case through the breather hose to be mixed with the
blow-by gas inside the crankcase.
The blow-by gas inside the crankcase is drawn into
the intake manifold through the PCV valve.
The PCV valve is designed to lift the plunger accord-
ing to the intake manifold vacuum so as to regulate
the flow of blow-by gas properly.
In other words, the blow-by gas flow is regulated dur-
ing low load engine operation to maintain engine sta-
bility, while the flow is increased during high load
operation to improve the ventilation performance.
SYSTEM DIAGRAM
<2.4L ENGINE>
AK300553
VENTILATION HOSE
POSITIVE CRANKCASE
VENTILATION VALVE
BREATHER HOSE
AB
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