Mitsubishi Outlander (2003+). Manual — part 112

ON-VEHICLE SERVICE

MULTIPORT FUEL INJECTION (MFI)

13A-311

(7) Connect the fuel pump assembly <2WD> or

the fuel tank pump and gauge assembly
<4WD> connector.

(8) Install the service hole cover and rear seat

assembly (Refer to GROUP 52A, Rear Seat
Assembly Removal and Installation

P.52A-25

).

COMPONENT LOCATION

M1131002100622

Name

Symbol

Name

Symbol

Air flow sensor
(with intake air temperature sensor and
barometric pressure sensor)

G

Engine-ECU

T

Engine warming lamp
(check engine lamp)

Q

A/C relay

O

Fuel pump relay (1) and (2)

P

A/C switch

S

Idle speed control servo

F

A/C pressure sensor

A

Ignition coil

I

Camshaft position sensor

L

Injector

D

Crank angle sensor

C

Oxygen sensor (front)

K

Detonation sensor

H

Oxygen sensor (rear)

U

Diagnosis connector

R

Power steering fluid pressure switch

B

EGR control solenoid valve

J

Purge control solenoid valve

J

Engine control relay

O

Throttle position sensor

E

Engine coolant temperature sensor

M

Vehicle speed sensor

N

AK300351

T

R

S

Q

P

U

E

G

F

C

B

A

D

J

I

H

M

N

O

L

K

AB

ON-VEHICLE SERVICE

MULTIPORT FUEL INJECTION (MFI)

13A-312

ENGINE CONTROL RELAY CONTINUITY
CHECK

M1131050000185

FUEL PUMP RELAY CONTINUITY CHECK

M1131033000193

INTAKE AIR TEMPERATURE SENSOR
CHECK

M1131002800364

1. Disconnect the air flow sensor connector.
2. Measure resistance between terminals No. 5 and

No. 6.

Standard value:

13

-

17 k

W

(at

-

20

•

C)

5.3

-

6.7 k

W

(at 0

•

C)

2.3

-

3.0 k

W

(at 20

•

C)

1.0

-

1.5 k

W

(at 40

•

C)

0.56

-

0.76 k

W

(at 60

•

C)

0.30

-

0.42 k

W

(at 80

•

C)

3. Remove the air flow sensor

4. Measure resistance while heating the sensor

using a hair drier.

Normal condition:

5. If the value deviates from the standard value or

the resistance remains unchanged, replace the air
flow sensor assembly.

6. Install the air flow sensor and tighten it to the

specified torque.

Tightening torque: 8.8

–

1 N

¼

m

Tester
Connectio
n Terminal

Battery Voltage

Normal
State

2

-

3

No Voltage

Continuity

1

-

4

No Voltage

No continuity

Voltage (Connect
positive (+) terminal of
battery to terminal No. 3
and negative (

-

)

terminal of battery to
terminal No. 2.)

Continuity

Tester
Connectio
n Terminal

Battery Voltage

Normal
State

2 - 3

No Voltage

Continuity

1 - 4

No Voltage

No continuity

Voltage (Connect
positive (+) terminal of
battery to terminal No. 3
and negative (

-

)

terminal of battery to
terminal No. 2.)

Continuity

AK300352

1

2

3

4

AB

Engine control relay

Equipment side
connector

Relay box’s
triangle marks

AK300353

1

2

3

4

AB

Fuel pump
relay (2)

Fuel pump
relay (1)

Equipment side
connector

Junction block’s
triangle marks

Temperature (

•

C)

Resistance (k

W

)

Higher

Smaller

AK300354

6 7

1 2 3 4 5

AB

Equipment side connector

Intake air
temperature
sensor

AKX01621

Intake air temperature
sensor

AD

ON-VEHICLE SERVICE

MULTIPORT FUEL INJECTION (MFI)

13A-313

ENGINE COOLANT TEMPERATURE
SENSOR CHECK

M1131003100335

CAUTION

Be careful not to touch the connector (resin sec-
tion) with the tool when removing and installing.

1. Remove the engine coolant temperature sensor.

2. With temperature sensing portion of engine

coolant temperature sensor immersed in hot
water, check resistance.

Standard value:

14

-

17 k

W

(at

-

20

•

C)

5.1

-

6.5 k

W

(at 0

•

C)

2.1

-

2.7 k

W

(at 20

•

C)

0.9

-

1.3 k

W

(at 40

•

C)

0.48

-

0.68 k

W

(at 60

•

C)

0.26

-

0.36 k

W

(at 80

•

C)

3. If the resistance deviates from the standard value

greatly, replace the sensor.

4. Apply sealant to threaded portion.

Specified sealant:

3M NUT Locking Part No. 4171 or equivalent

5. Install the engine coolant temperature sensor and

tighten it to the specified torque.

Tightening torque: 29

–

10 N

¼

m

THROTTLE POSITION SENSOR CHECK

M1131003200398

1. Disconnect the throttle position sensor connector.
2. Measure the resistance between the throttle

position sensor side connector terminal No. 1 and
terminal No. 4.

Standard value: 3.5

-

6.5 k

W

3. Measure the resistance between the throttle

position sensor side connector terminal No. 2 and
terminal No. 4.

Normal condition:

4. If the resistance is outside the standard value, or if

it doesn’t change smoothly, replace the throttle
position sensor.

NOTE: For the throttle position sensor adjustment
procedure, refer to

3

13A

.

OXYGEN SENSOR CHECK

M1131005000497

Oxygen sensor (front)

AK300355

1 2

1 2

AKX01622

AKX01623AD

Throttle valve slowly
open until fully open from
the idle position

Changes smoothly in
proportion to the opening
angle of the throttle valve

AK300346

1

2 3

4

AB

Throttle position
sensor

Equipment side connector

AK300356

1

2

3

4

AB

Oxygen sensor (front)

Equipment side connector

ON-VEHICLE SERVICE

MULTIPORT FUEL INJECTION (MFI)

13A-314

1. Disconnect the oxygen sensor connector and

connect the special tool Test harness
(MD998464) to the connector on the oxygen
sensor side.

2. Make sure that there is continuity (4.5

-

8.0

W

at

20

•

C) between terminal No. 1 (red clip of special

tool) and No. 3 (blue clip of special tool) on the
oxygen sensor connector.

3. If there is no continuity, replace the oxygen

sensor.

4. Warm up the engine until engine coolant is 80

•

C

or higher.

5. Perform a tracing for 5 minutes or more with the

engine speed of 4,500 r/min.

6. Connect a digital voltage meter between terminal

No. 2 (black clip of special tool) and No. 4 (white
clip of special tool).

7. While repeatedly racing the engine, measure the

oxygen sensor output voltage.

Standard value:

CAUTION

œ

Be very careful when connecting the jumper
wire; incorrect connection can damage the
oxygen sensor.

œ

Be careful the heater is broken when voltage
of beyond 8V is applied to the oxygen sensor
heater.

NOTE: If the sufficiently high temperature (of
approximate 400

•

C or more) is not reached

although the oxygen sensor is normal, the output
voltage would be possibly low although the rich
air-fuel ratio. Therefore, if the output voltage is
low, use a jumper wire to connect the terminal
No.1 (red clip of special tool) and the terminal No.
3 (blue clip of special tool) of the oxygen sensor
with a (+) terminal and (-) terminal of 8 V power
supply respectively, then check again.

8. If the sensor is defective, replace the oxygen

sensor.

NOTE: For removal and installation of the oxygen
sensor, refer to GROUP 15

-

Exhaust Manifold.

3

15

.

Oxygen sensor (rear)

1. Disconnect the oxygen sensor connector and

connect the special tool Test harness (MB991658)
to the connector on the oxygen sensor side.

2. Make sure that there is continuity (11

-

18

W

at

20

•

C) between terminal No. 1 and No. 2 on the

oxygen sensor connector.

3. If there is no continuity, replace the oxygen

sensor.

4. Warm up the engine until engine coolant is 80

•

C

or higher.

5. Perform a tracing for 5 minutes or more with the

engine speed of 4,500 r/min.

Engine

Oxygen
sensor
output
voltage

Remarks

When
racing the
engine

0.6

-

1.0 V

If you make the air-fuel
ratio rich by racing the
engine repeatedly, a
normal oxygen sensor
will output a voltage of
0.6

-

1.0 V.

AKX01624

Black

White

MD998464

Oxygen
sensor
equipment
side connector

AF

AK300357

2 1

4 3

Oxygen sensor (rear)

AB

Equipment side
connector

Oxygen sensor
connector (rear)