Mitsubishi LANCER EVOLUTION 2003 Technical Information Manual page 56

GENERAL DESCRIPTION
The emission control system is basically the same as
that for the 2.4L engine installed in the ECLIPSE.
SYSTEM
Crankcase ventilation system
Evaporative emission system
Exhaust gas recirculation (EGR) system
Air/fuel ratio closed loop control
Catalytic converter
EMISSION CONTROL SYSTEM DIAGRAM
EVAPORATIVE
EMISSION
PURGE
SOLENOID
EVAPORATIVE
EMISSION
VENTILATION
SOLENOID
EVAPORATIVE
EMISSION
CANISTER
AIR INLET
ENGINE AND EMISSION CONTROL
EMISSION CONTROL
EMISSION CONTROL
REMARK
Closed type
Electronic control type
• Evaporative emission purge solenoid: Duty type
• Evaporative emission ventilation solenoid: Duty type
Electronic control type
• EGR vacuum regulator solenoid valve: Duty type
Heated oxygen sensor signal used
Three-way catalyst
FUEL TANK
The EGR system does not contain a vacuum control
valve. The evaporative emission system has a check
valve between the intake manifold and the evapora-
tive emission purge solenoid to prevent reverse flow
during boost.
CHECK
VALVE
FUEL PRESSURE
SOLENOID
FUEL
PRESSURE
REGULATOR
TO
FUEL
TANK
HEATED OXYGEN
SENSOR (FRONT)
M2171000100195
EGR
SOLENOID
FROM
FUEL
PUMP
EGR
VALVE
INJECTOR
HEATED OXYGEN
SENSOR (REAR)
AK202523
17-3
AB