2008 MITSUBISHI LANCER EVOLUTION X sensor

AIR DUCT AND AIR CLEANER
INTAKE AND EXHAUST15-2
AIR DUCT AND AIR CLEANERM2150004000656
A front air intake system that actively sucks cooling
air from the front through the top of the radiator has
been adopted in order to improve engine perfor
-
mance and reduce air intake noise.
CONSTRUCTION DIAGRAM
AC608342AB
Air cleaner assembly Mass airflow sensor
Air cleaner intake hose
Air cleaner intake duct

EXHAUST MANIFOLD
INTAKE AND EXHAUST15-4
EXHAUST MANIFOLDM2150006000566

A clamshell type exhaust manifold is used.

A SUS pipe type exhaust manifold is used.
EXHAUST PIPE AND MUFFLERM2150003000783
The exhaust system is composed of the front
exhaust pipe, center exhaust pipe, and main muffler,
and it has the following characteristics.•Fewer, more environmentally-friendly rubber
hangers to reduce vibration from exhaust system.
•Straighter exhaust pipe to reduce noise.
CONSTRUCTION DIAGRAM
AK603623

AB
AC608352Front exhaust pipeCenter exhaust pipeMain mufflerAB
Heated oxygen sensor (front)
Heated oxygen sensor (rear)
AC608488Front exhaust pipeCenter exhaust pipeMain mufflerAB
Heated oxygen
sensor (rear)
Heated oxygen sensor (3rd) Heated oxygen
sensor (front)

FUEL TANK
FUEL SUPPLY13B-3
FUEL TANKM2134001000817.The fuel tank assembly consists of the fuel pump
module, the fuel tank, and so on, and features the
following characteristics:
•The fuel tank is mounted underneath the second
seat to improve safety at a collision.
•The fuel tank itself is made of a pre-coat zinc
alloy galvanised steel sheet that contains no
lead.
•The capacity of the fuel tank is 59 dm3 (15.5 gal)
to meet long-distance drives.
•The fuel cut-off valve, fuel tank leveling valve and
fuel tube have been installed using in-tank con
-
struction to reduce the amount of evaporated fuel
from hoses.
The fuel pump module consists of the following com-
ponents:
•Fuel pump
•Fuel level sensor
•Fuel filter
•Fuel pump pressure regulator
•Fuel tank differential pressure sensor
•Fuel tank temperature sensor
CONSTRUCTION DIAGRAM
AC610225AB
Fuel pump module
Fuel tank
AC610226
Fuel cut-off valve
Fuel check valve
Leveling valve
AC

13A-1
GROUP 13A
MULTIPORT FUEL
SYSTEM (MFI)
CONTENTS
GENERAL DESCRIPTION. . . . . . . . .13A-2
CONTROL UNIT. . . . . . . . . . . . . . . . .13A-6
SENSOR. . . . . . . . . . . . . . . . . . . . . . .13A-8
ACTUATOR . . . . . . . . . . . . . . . . . . . .13A-23
FUEL INJECTION CONTROL . . . . . .13A-29
IGNITION TIMING AND CONTROL FOR
CURRENT CARRYING TIME . . . . . .13A-35
THROTTLE VALVE OPENING ANGLE
CONTROL AND IDLE SPEED

CONTROL . . . . . . . . . . . . . . . . . . . . .13A-38
MIVEC (Mitsubishi Innovative Valve
Timing Electronic Control System) .13A-40
MULTIPORT FUEL INJECTION (MFI)
RELAY CONTROL . . . . . . . . . . . . . . .13A-45
FUEL PUMP RELAY CONTROL . . . .13A-46
STARTER RELAY CONTROL . . . . . .13A-47
HEATED OXYGEN SENSOR HEATER
CONTROL . . . . . . . . . . . . . . . . . . . . . .13A-49
A/C COMPRESSOR RELAY
CONTROL . . . . . . . . . . . . . . . . . . . . . .13A-50
GENERATOR CONTROL . . . . . . . . . .13A-51
EVAPORATIVE EMISSION CONTROL
SYSTEM INCORRECT PURGE FLOW
MONITOR . . . . . . . . . . . . . . . . . . . . . .13A-52
EXHAUST GAS RECIRCULATION
CONTROL . . . . . . . . . . . . . . . . . . . . . .13A-53
CONTROLLER AREA NETWORK
(CAN) . . . . . . . . . . . . . . . . . . . . . . . . .13A-53
EVAPORATIVE EMISSION PURGE
CONTROL . . . . . . . . . . . . . . . . . . . . . .13A-53
HC TRAP CATALYTIC CONVERTER
DETERIORATION MONITOR . . . . . . .13A-53
ON-BOARD DIAGNOSTICS . . . . . . . .13A-53

GENERAL DESCRIPTION
MULTIPORT FUEL SYSTEM (MFI)13A-2
GENERAL DESCRIPTIONM2132000101283
Although the control systems are basically the same as those of 2.4L engine used in the GALANT, the follow-
ing improvements have been added.
Improvement / AdditionsRemark
MIVEC, continuously and variably control the intake
valve timing and exhaust valve timing, is used.System optimally control the timing of the intake
valve and exhaust valve in accordance with the
engine speed and load.
Addition of heated oxygen sensor (3rd)
Detection of the HC trap catalyst malfunction.

GENERAL DESCRIPTION
MULTIPORT FUEL SYSTEM (MFI)13A-3
System Block Diagram
AK604116
Mass airflow sensor
Intake air temperature sensor
Intake camshaft position
sensor
Exhaust camshaft position
sensor
Crankshaft position sensor Throttle position sensor (main)
Throttle position sensor (sub)
Accelerator pedal position
sensor (sub) Accelerator pedal position
sensor (main) Engine coolant temperature
sensor Manifold absolute pressure
sensor
Heated oxygen sensor (front)
Heated oxygen sensor (rear)
Power steering pressure
switch Engine oil pressure switch Generator L terminal
Ignition switch-ST
Power supply Ignition switch-IG
CAN communication
(input signal)
· A/C switch
· Vehicle speed
· Fuel level sensor
· Transmission range switch
Fuel tank differential pressure
sensor Heated oxygen sensor
(3rd)*
Knock sensor
Generator FR terminal
Fuel tank temperature sensor
Vehicle speed sensor Engine control unit Barometric pressure sensor
[1] Fuel injection control
[2] Ignition timing control
[3] Throttle valve opening angle
control and idle speed control
[4]
MIVEC (Mitsubishi Innovative
Valve timing Electronic Control
system)
[5] Power supply control
(Power supply to sensor,
actuator)
[6] Fuel pump relay control
[7] Starter relay control
[8] Heated oxygen sensor heater
control
[9] A/C compressor relay control
[10] Generator control
[11] Evaporative emission purge
control
[12] EGR control
[13] Diagnosis output
[14] RAM data transmission
CAN communication
(output signal) Intake engine oil control
valve
A/C compressor relay No. 2 injector
No. 3 injector
No. 4 injector
Heated oxygen sensor (front)
heater
Heated oxygen sensor (rear)
heater Throttle actuator control
motor
Throttle actuator control
motor relay No. 1 injector
No. 1 ignition coil
No. 2 ignition coi
No. 3 ignition coi
No. 4 ignition coi
Fuel pump relay
Generator G terminal Heated oxygen sensor (3rd)
heater*
Multiport fuel injection (MFI)
relay Exhaust engine oil control
valve
Evaporative emission ventilation
solenoid Evaporative emission purge
solenoid
EGR valve (stepper motor)*
Starter relay
AB
Sensor, switch Engine control module (ECM) Actuator
NOTE
*1: California

GENERAL DESCRIPTION
MULTIPORT FUEL SYSTEM (MFI)13A-4
Control System Diagram

AK604117
Fuel level
sensorFuel tank Air
inlet
2 Exhaust engine
oil control valve
1 Intake engine
oil control valve4 Manifold absolute pressure sensor
2 Intake air
temperature sensor
1 Mass airflow sensor
6 Intake
camshaft
position
sensor
7 Exhaust
camshaft
position
sensor
3 Throttle position
sensor (main/sub)
5 Evaporative emission
purge solenoid
3 Throttle actuator
control motor
12 Fuel tank differential
pressure sensor
13 Fuel tank
temperature
sensor10 Heated oxygen sensor (front)
11 Heated oxygen
sensor (rear)
8 Crankshaft position sensor5 Engine coolant
temperature sensor
9 Knock sensor
4 Injector
Fuel pump Fuel pressure
regulator Evaporative
emission
canister
6 Evaporative
emission
ventilation
solenoid
1 Mass airflow sensor
2 Intake air temperature sensor
3 Throttle position sensor (main/sub)
4 Manifold absolute pressure sensor
5 Engine coolant temperature sensor
6 Intake camshaft position sensor
7 Exhaust camshaft position sensor
8 Crankshaft position sensor
9 Knock sensor
10 Heated oxygen sensor (front)
11 Heated oxygen sensor (rear)
12 Fuel tank differential pressure sensor
13 Fuel tank temperature sensor
Ignition switch-IG
Ignition switch-ST
Power supply
CAN communication (input signal)1 Intake engine oil control valve
2 Exhaust engine oil control valve
3 Throttle actuator control motor
4 Injector
5 Evaporative emission purge solenoid
6 Evaporative emission ventilation
solenoid
Ignition coil, ignition power transistor
Multiport fuel injection (MFI) relay
Fuel pump relay
Starter relay
Throttle actuator control motor relay
Generator G terminal
Heated oxygen sensor heater
A/C compressor relay
Diagnostic output
CAN communication (output signal) SenseAct
Engine oil pressure switch
Power steering pressure switch
Generator FR terminal
Generator L terminal
Vehicle speed sensor Accelerator pedal position sensor (main/sub)
Decide
ECM
(with barometric
pressure sensor)
AB

GENERAL DESCRIPTION
MULTIPORT FUEL SYSTEM (MFI)13A-5

AK604118
Fuel tank
Fuel level
sensor Air
inlet
2 Exhaust engine
oil control valve
1 Intake engine
oil control valve4 Manifold absolute pressure sensor
2 Intake air
temperature sensor
1 Mass airflow sensor
6 Intake
camshaft
position
sensor
7 Exhaust
camshaft
position
sensor
3 Throttle position
sensor (main/sub)
5 Evaporative emission
purge solenoid
3 Throttle actuator
control motor
12 Fuel tank differential
pressure sensor
13 Fuel tank
temperature
sensor11 Heated oxygen sensor (rear)
10 Heated
oxygen
sensor
(front)
12 Heated oxygen sensor (3rd)
8 Crankshaft position sensor5 Engine
coolant
temperature
sensor
9 Knock sensor
4 Injector
Fuel pump Fuel pressure
regulator Evaporative
emission
canister
6 Evaporative
emission
ventilation
solenoid
7 EGR valve
(stepper motor)
1 Mass airflow sensor
2 Intake air temperature sensor
3 Throttle position sensor (main/sub)
4 Manifold absolute pressure sensor
5 Engine coolant temperature sensor
6 Intake camshaft position sensor
7 Exhaust camshaft position sensor
8 Crankshaft position sensor
9 Knock sensor
10 Heated oxygen sensor (front)
11 Heated oxygen sensor (rear)
12 Heated oxygen sensor (3rd)
13 Fuel tank differential pressure sensor
14 Fuel tank temperature sensor
Ignition switch-IG
Ignition switch-ST
Power supply
CAN communication (input signal)1 Intake engine oil control valve
2 Exhaust engine oil control valve
3 Throttle actuator control motor
4 Injector
5 Evaporative emission purge solenoid
6 Evaporative emission ventilation
solenoid
7 EGR valve (stepper motor)
Ignition coil, ignition power transistor
Multiport fuel injection (MFI) relay
Fuel pump relay
Starter relay
Throttle actuator control motor relay
Generator G terminal
Heated oxygen sensor heater
A/C compressor relay
Diagnostic output
CAN communication (output signal) SenseAct
Engine oil pressure switch
Power steering pressure switch
Generator FR terminal
Generator L terminal
Vehicle speed sensor Accelerator pedal position sensor (main/sub)
Decide
ECM
(with barometric
pressure sensor)
AB