Mitsubishi Colt Ralliart. Manual - part 128

ENGINE CONTROL

ENGINE AND EMISSION CONTROL

17-3

INSTALLATION SERVICE POINT
>>A<< ACCELERATOR PEDAL ARM 
STOPPER INSTALLATION

AC600413AB

Accelerator
pedal arm
stopper

Stud bolt

Body
bracket

1. Insert the accelerator pedal arm stopper straight 

into the stud bolt of the floor.

2. Install the accelerator pedal arm stopper securely 

by turning it clockwise until its underside contacts 
with the body bracket  as shown in the figure.

3. After the installation, slightly pull the accelerator 

pedal arm stopper by hand to check that it cannot 
be removed easily (appropriate holding power: 
100N or more).

Main

Index

Group

TOC

EMISSION CONTROL

ENGINE AND EMISSION CONTROL

17-4

EMISSION CONTROL

GENERAL INFORMATION

M1173000100938

The emission control system consists of the following 
subsystems:

• Crankcase emission control system

• Evaporative emission control system

•

Items

Name

Specification

Crankcase emission control 
system

Positive crankcase ventilation (PCV) 
valve

Variable flow type
(Purpose: HC reduction)

Evaporative emission control 
system

Canister
Purge control solenoid valve

Equipped
Duty cycle type solenoid 
valve
(Purpose: HC reduction)

Exhaust emission control 
system

Air-fuel ratio control device - MPI system Oxygen sensor feedback 

type (Purpose: CO, HC, NOx 
reduction)

Exhaust gas recirculation system 
<4A9-CVT>

• EGR valve

Equipped
Stepper motor type
(Purpose: NOx reduction)

Catalytic converter

Monolith type
(Purpose: CO, HC, NOx 
reduction)

Exhaust emission control system

EMISSION CONTROL DEVICE 
REFERENCE TABLE

M1173006600458

Related parts

Crankcase 
emission 
control 
system

Evaporative 
emission 
control 
system

Air/fuel ratio 
control 
system

Catalytic 
converter

Exhaust gas 
recirculation 
system

PCV valve

×

Purge control solenoid valve

×

MPI system component

×

×

Catalytic converter

×

EGR valve (stepper motor) 
<4A9-CVT>

×

Main

Index

Group

TOC

EMISSION CONTROL

ENGINE AND EMISSION CONTROL

17-5

SERVICE SPECIFICATIONS

M1173000300772

Items

Standard value

Purge control solenoid valve coil resistance (at 20

°C) Ω

30 

− 34

EGR valve coil resistance (at 20

°C) Ω <4A9-CVT>

20 

− 24

SPECIAL TOOL

M1173000600557

Tool

Number

Name

Use

MB991658

MD991658

Test harness

EGR valve (stepper motor) check 
<4A9-CVT>

Main

Index

Group

TOC

EMISSION CONTROL

ENGINE AND EMISSION CONTROL

17-6

VACUUM HOSE

VACUUM HOSE PIPING DIAGRAM

M1173000900956

<4A9>

AK402829

Oxygen sensor (front)

Oxygen sensor (rear)

Air 
inlet

EGR valve
(stepper motor)
<CVT>

Canister

Purge control 
solenoid valve

Injector

PCV valve

AC

Catalytic converter

From
fuel pump

Main

Index

Group

TOC