EMISSION SYSTEM [MZI-3.5]
01-16–6
EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM STRUCTURE [MZI-3.5]
id0116d1100900
• Consists of a purge solenoid valve, charcoal canister, canister vent (CV) solenoid valve, air filter, rollover valve,
fuel-filler cap and fuel shut-off valve.
End Of Sie
EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM OPERATION [MZI-3.5]
id0116d1101000
• When the engine is stopped, evaporative gas in the fuel tank flows out when the pressure increases and is
absorbed by the charcoal canister.
• Evaporative gas that was absorbed by the charcoal canister passes through the solenoid valve together with air
introduced from the charcoal canister when the engine is running, and is fed to the engine according to engine
operation conditions.
• If the pressure in the fuel tank decreases, air is introduced from the charcoal canister through the rollover valve.
End Of Sie
NG: PURGE SOLENOID VALVE
PURGE SOLENOID VALVE FUNCTION [MZI-3.5]
id0116d1102300
• Adjusts the amount of evaporative gas to be introduced to the intake air system.
End Of Sie
PURGE SOLENOID VALVE CONSTRUCTION/OPERATION [MZI-3.5]
id0116d1102400
• Opens and closes the valve according to the
purge solenoid valve control signal (duty signal)
from the PCM to control the amount of
evaporative gas to be introduced to the dynamic
chamber according to engine operation
conditions.
• The passage between the ports opens when the
PCM sent the signal, and evaporative gas is
introduced to the intake air system according to
intake manifold vacuum.
End Of Sie
NG: PCV SYSTEM
POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM OUTLINE [MZI-3.5]
id0116d1101100
Feature
• A closed type PCV system has been adopted.
End Of Sie
: TO PCM
FUEL SHUT-OFF
VALVE
PURGE SOLENOID
VALVE
CHARCOAL
CANISTER
FUEL-
FILLER
CAP
ROLLOVER
VALVE
ROLLOVER
VALVE
AIR FILTER
CV SOLENOID VALVE
AWD
2WD
ac9uun00000014
FROM CHARCOAL
CANISTER
TO DYNAMIC
CHAMBER
ac9uun00000180
3423-1U-06H(01-16).fm 6 ページ ２００６年１１月２２日 水曜日 午後２時４分
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