catalytic converter MITSUBISHI LANCER 2006 Workshop Manual

17-1
GROUP 17
ENGINE AND
EMISSION
CONTROL
CONTENTS
ENGINE CONTROL . . . . . . . . . .17-2
GENERAL INFORMATION . . . . . .17-2
SERVICE SPECIFICATIONS. . . . .17-2
ON-VEHICLE SERVICE. . . . . . . . .17-2
ACCEL CABLE CHECK AND
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . 17-2
ACCELERATOR CABLE AND
PEDAL . . . . . . . . . . . . . . . . . . . . . .17-3
REMOVAL AND INSTALLATION . . . . . 17-3
EMISSION CONTROL MPI . . . .17-4
GENERAL INFORMATION . . . . . .17-4
EMISSION CONTROL DEVICE
REFERENCE TABLE . . . . . . . . . .17-4
SERVICE SPECIFICATION(S) . . .17-5
VACUUM HOSE. . . . . . . . . . . . . . .17-5
VACUUM HOSE PIPING DIAGRAM . . . 17-5
VACUUM CIRCUIT DIAGRAM . . . . . . . 17-7
VACUUM HOSE CHECK. . . . . . . . . . . . 17-7
VACUUM HOSE INSTALLATION . . . . . 17-8
CRANKCASE EMISSION CONTROL
SYSTEM . . . . . . . . . . . . . . . . . . . . .17-8
GENERAL INFORMATION (CRANKCASE
EMISSION CONTROL SYSTEM) . . . . . 17-8
COMPONENT LOCATI ON (CRANKCASE
EMISSION CONTROL SYSTEM) . . . . . 17-9
POSITIVE CRANKCASE VENTILATION SYSTEM
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . 17-9
POSITIVE CRANKCASE VENTILATION (PCV)
VALVE CHECK . . . . . . . . . . . . . . . . . . . 17-9
EVAPORATIVE EMISSION CONTROL
SYSTEM . . . . . . . . . . . . . . . . . . . . .17-9
GENERAL INFORMATION (EVAPORATIVE
EMISSION CONTROL SYSTEM) . . . . . 17-9
COMPONENT LOCATION (EVAPORATIVE
EMISSION CONTROL SYSTEM) . . . . . 17-10
PURGE CONTROL SYSTEM CHECK . . 17-10
PURGE PORT VACUUM CHECK . . . . . 17-11
PURGE CONTROL SOLENOID VALVE
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . 17-11
FUEL VAPOUR CANISTER REMOVAL
AND INSTALLATION . . . . . . . . . . . . . . . 17-12
EXHAUST GAS RECIRCULATION
(EGR) SYSTEM . . . . . . . . . . . . . . .17-12
GENERAL INFORMATION
(EGR SYSTEM) . . . . . . . . . . . . . . . . . . . 17-12
COMPONENT LOCATION
(EGR SYSTEM) . . . . . . . . . . . . . . . . . . . 17-14
EGR SYSTEM CHECK . . . . . . . . . . . . . 17-15
EGR VALVE CHECK . . . . . . . . . . . . . . . 17-15
EGR PORT VACUUM CHECK <4G1>. . 17-16
EGR PORT VACUUM CHECK <4G6>. . 17-16
EGR CONTROL SOLENOID VALVE
CHECK <4G1> . . . . . . . . . . . . . . . . . . . . 17-16
EGR CONTROL SOLENOID VALVE
CHECK <4G6> . . . . . . . . . . . . . . . . . . . . 17-17
EXHAUST GAS RECIRCULATION (EGR)
VALVE REMOVAL AND I
NSTALLATION . . . . . . . . . . . . . . . . . . . . 17-18
CATALYTIC CONVERTER . . . . . .17-19
REMOVAL AND INSTALLATION
<4G1, 4G6-M/T> . . . . . . . . . . . . . . . . . . 17-19
REMOVAL AND INSTALLATION
<4G6-A/T> . . . . . . . . . . . . . . . . . . . . . . . 17-19

EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-4
INSTALLATION SERVICE POINT
>>A<< ACCEL PEDAL PAD INSTALLA-
TION
CAUTION
To prevent damages to the accelerator pedal pad,
warm the thumb area of the accelerator pedal
pad with a dryer, etc. prior to assembling it.
NOTE: If it is difficult to assemble, apply soapy water
to the thumb area to enhance the assembling proc
-
ess.
EMISSION CONTROL
GENERAL INFORMATION
M1173000100370
The emission control system consists of the following
subsystems:
•Crankcase emission control system
•Evaporative emission control system
•
ItemsNameSpecification
Crankcase emission control
systemPositive crankcase ventilation
(PCV) valveVariable flow type
(Purpose: HC reduction)
Evaporative emission control
systemCanister
Purge control solenoid valve
Equipped
Duty cycle type solenoid valve
(Purpose: HC reduction)
Exhaust emission control systemAir-fuel ratio control device - MPI
systemOxygen sensor feedback type
(Purpose: CO, HC, NOx reduction)
Exhaust gas recirculation system
•EGR valve
•EGR control solenoid valve
Equipped
Single type
Duty cycle type solenoid valve
(Purpose: NOx reduction)
Catalytic converterMonolith type
(Purpose: CO, HC, NOx reduction)
Exhaust emission control system
EMISSION CONTROL DEVICE
REFERENCE TABLE
M1173006600135
Related partsCrankcase
emission
control
systemEvaporative
emission
control
systemAir/fuel ratio
control
systemCatalytic
converterExhaust gas
recirculation
system
PCV valve×
Purge control solenoid valve×
MPI system component××
Catalytic converter×
EGR valve×
EGR control solenoid valve×
7.Accelerator control equip bushing
8.Accelerator pedal arm return spring
9.Accelerator pedal arm stopper
10.Accelerator pedal arm bracket
11 .Accelerator pedal arm
>>A<<12.Accelerator pedal pad
13.Accelerator pedal arm stopper
Accelerator pedal assembly
removal steps (Continued)

EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-5
SERVICE SPECIFICATION(S)
M1173000300288
ItemsStandard value
Purge control solenoid valve coil resistance (at 20°C) Ω30 − 34
EGR control solenoid valve coil resistance (at 20°C) Ω29 − 35
VACUUM HOSE
VACUUM HOSE PIPING DIAGRAMM1173000900417
AK300964
To
fuel tankFuel pressure
regulatorFrom
fuel pump
Catalytic
converter Catalytic
converter
Oxygen sensor
(front)
Oxygen sensor (rear)EGR valve
<4G1>
EGR control
solenoid valvePurge control
solenoid valve CanisterAir
AB
Air cleaner

AK204364AC
Air cleaner
Air
Canister
Purge control
solenoid valve
EGR control
solenoid valve
EGR valve
From
fuel pump
To
fuel tank Fuel pressure
regulator
PCV valve
Oxygen sensor
(front)
Oxygen sensor (rear)
Catalytic
converter
Catalytic
converter
<4G6>
EMISSION CONTROL
ENGINE AND E M ISSION CON T ROL17-6

EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-19
CATALYTIC CONVERTER
REMOVAL AND INSTALLATION <4G1,
4G6-M/T>
M1173003900773
Refer to GROUP 15 - Exhaust Pipe and Main Muffler P.15-10.
REMOVAL AND INSTALLATION
<4G6-A/T>
M1173003900784
AC504823
2
3N
N4
59 ± 10 N·m
50 ± 10 N·m
1
45 ± 5 N·m
AB
Removal steps
<>>>A<<1.Oxygen sensor
2.Catalytic converter
3.Gasket
4.Gasket
REMOVA L SER V ICE POINT
<> OXYGEN SENSOR REMOV A L
AC212566AB
MD998770
Oxygen sensor
Use spec ia l tool oxyg en sen s or wrench (MD9987 70)
to remove
the oxyge n sen s or .
INSTALLA T ION SER VICE POINT
>>A<< OXYGEN SENSOR INST ALL A TION
AC212566AB
MD998770
Oxygen sensor
Use spec ia l tool oxyg en sen s or wrench (MD9987 70)
to inst
all the oxyge n sen s or .