diagram MITSUBISHI LANCER EVOLUTION IV 1998 Workshop Manual

HOW TO READ THE WIRING DIAGRAMS A. . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL WIRING (EVOLUTION-IV) B. . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL WIRING (EVOLUTION-V) C. . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL
WIRING
CONTENTS

MPI – General Information13-2
MULTIPOINT INJECTION (MPI)
GENERAL INFORMATION
OMPI System Diagram

1 Injector

2 ISC servo

3 Fuel pressure control valve

4 Waste gate solenoid valve

5 Secondary air control solenoid valve
Control relay
Fuel pump relay
A/C relay
Ignition coil
Exhaust temperature warning lamp
Engine warning lamp
Diagnosis output
Alternator G terminal
Fan motor relay
Tachometer
Fuel pump relay No.2 1 Oxygen sensor
2 Air flow sensor
3 Intake air temperature sensor
4 Throttle position sensor
5 Idle switch
6 Camshaft position sensor
7 Crank angle sensor
8 Barometric pressure sensor
9 High temperature sensor
10 Engine coolant temperature sensor
11 Detonation sensor
Power supply voltage
Ignition switch-IG
Ignition switch-ST
Vehicle speed sensor
A/C switch
Power steering fluid pressure switch
Alternator FR signalEngine ECU
1 Oxygen sensor
2 Air flow sensor3
Intake air tem-
perature sensor
4,
5
6 Camshaft position
sensor
7 Crank angle sensor 8 Barometric
pressure sensor
9 High temperature
sensor 10 Coolant temperature sensor
11 Detonation sensor
1 Injector
2 ISC servo

3 Fuel pressure
control valve

4 Waste gate
solenoid valve
5 Secondary air
control solenoid
valveCanister
Check valveFrom
fuel
tank
Throttle position
sensor (with a
built-in
idle
switch)
Secondary
air valve
AirTo fuel
tankFuel
pressure
regulatorFrom
fuel
pump
Waste gate
actuator
Catalytic converter
Given above is the MPI system diagram for EVOLUTION-IV. The MPI system for EVOLUTION-V is different
from this in the following point;
Oxygen sensor with a heater is adopted.
The diagnosis connector power supply circuit is different.
The high temperature sensor is no longer used.

17-1
ENGINE AND
EMISSION
CONTROL
CONTENTS
ENGINE CONTROL SYSTEM 2. . . . . . . .
SERVICE SPECIFICATIONS 2. . . . . . . . . . . . . .
EMISSION CONTROL SYSTEM 2. . . . . .
ON-VEHICLE SERVICE 2. . . . . . . . . . . . . . . . . .
System Configuration Diagram 2. . . . . . . . . . . . . .
Vacuum Hose Piping Circuit Diagram 3. . . . . . .
CANISTER 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CATALYTIC CONVERTER 4. . . . . . . . . . . . . . . .

ENGINE EMISSION CONTROL –
Engine Control System /
Emission Control System <MPI>17-2
ENGINE CONTROL SYSTEM
SERVICE SPECIFICATIONS
ItemsStandard value
Idle speed rpm850 ± 50
EMISSION CONTROL SYSTEM <MPI>
ON-VEHICLE SERVICE
SYSTEM CONFIGURATION DIAGRAM
Canister
Check
valve
Throttle body
Fuel pressure control
valve
Fuel pressure regulator
PCV valve
AirInjector
High temperature sensor*
*: EVOLUTION-IV only

ENGINE EMISSION CONTROL – Emission Control System <MPI>17-3
VACUUM HOSE PIPING CIRCUIT DIAGRAM
Fuel pressure
control valve
Surge tank
Secondary air
control solenoid
valveBlue White
Canister
Check
valve
Throttle body
Fuel
pressure
regulatorWastegate
solenoid
valve
Secondary
air valve
Bypass
valve
Front of vehicle
Wastegate
actuator Vacuum hose color
B: Black
L: Blue
R: Red
W: White
Y: Yellow
CANISTER
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation

Air Cleaner Removal and Installation
2
1
3
4
Removal steps
1. Vapor hose
2. Purge hose
3. Canister
4. Canister bracket