Mitsubishi Outlander (2003+). Manual — part 107

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-291

13

*

5

Intake air
temperature
sensor

Ignition switch:
“ON” or engine
running

Intake air
temperature:

-

20

•

C

-

20

•

C

Code No.
P0110

3

13A

Intake air
temperature: 0

•

C

0

•

C

Intake air
temperature: 20

•

C

20

•

C

Intake air
temperature: 40

•

C

40

•

C

Intake air
temperature: 80

•

C

80

•

C

21

*

5

Engine
coolant
temperature
sensor

Ignition switch:
“ON” or engine
running

Coolant temperature:

-

20

•

C

-

20

•

C

Code No.
P0115

3

13A

Coolant temperature:
0

•

C

0

•

C

Coolant temperature:
20

•

C

20

•

C

Coolant temperature:
40

•

C

40

•

C

Coolant temperature:
80

•

C

80

•

C

22

*

5

Crank angle
sensor

œ

Engine:
Cranking

œ

Tachometer:
Connected

Compare engine
speed on tachometer
with the value
displayed on MUT-II

Matched

-

-

Engine: Idle
operation

Coolant temperature:

-

20

•

C

1,100

-

1,300

r/min

Coolant temperature:
0

•

C

1,100

-

1,300

r/min

Coolant temperature:
20

•

C

1,100

-

1,300

r/min

Coolant temperature:
40

•

C

940

-

1,140 r/min

Coolant temperature:
80

•

C

650

-

850 r/min

24

*

5

Vehicle
speed sensor

Drive 40 km/h

Approximately 40
km/h

Code No.
P0500

3

13A

44

*

5

Ignition
advance

œ

Engine: After
warm-up

œ

Install timing
light (for use to
measure
actual ignition
timing)

Idle operation

2

-

18 deg

-

-

2,500 r/m

18

-

38 deg

Item
No.

Inspection
item

Inspection condition

Normal
condition

Inspection
procedure
No.

Reference
page

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-292

CAUTION

When shifting the select lever to D range, the brakes should be applied so that the vehicle does not
move forward

NOTE: *1: On the new vehicle (mileage: 500 km or less), air flow sensor output frequency may be higher by
approx. 10%.

NOTE: *2: Injector drive time ranges shown are when power voltage is 11 V and the cranking speed is 250
r/min. or less.

NOTE: *3: On the new vehicle (mileage: 500 km or less), injector drive time may be longer by approx. 10%.

NOTE: *4: On the new vehicle (mileage: 500 km or less), the number of steps of stepper motor may be larger
by approx. 30 steps.

NOTE: *5: When service data in check mode is selected, the data is not displayed.

81

*

5

Long-term
fuel
compensatio
n

Engine: After warm-up, 2,500 r/min
without any load (during closed loop)

-

12.5

-

12.5 %

Code No.
P0170

3

13A



82

*

5

Shot-term
fuel
compensatio
n

Engine: After warm-up, 2,500 r/min
without any load (during closed loop)

-

25

-

25 %

Code No.
P0170

3

13A



87

*

5

Calculation
losd value

Engine: After
warm-up

Idle operation

13

-

33 %

-

-

2,500 r/m

12

-

32 %

88

*

5

Fuel control
condition

Engine: After
warm-up

2,500 r/m

Closed loop

-

-

Acceleration

Open loop-drive
condition

8A

*

5

Throttle
position
sensor
(Throttle
opening
angle)

Ignition switch:
“ON”

Set to Idle position

0

-

10 %

Code No.
P0120

3

13A



Release accelerator
pedal gradually

Increased
according to
accelerator pedal
stroke

Release accelerator
pedal fully

80

-

100 %

A1

*

5

Oxygen
sensor (front)

Engine: After
warm-up (leaner
by deceleration,
richer by
acceleration)

Excessive
deceleration from
4,000 r/min

0.2 V or less

À

0.6

-

1 V

(altered)

Code No.
P0130

3

13A

Engine: After
warm-up (using
oxygen sensor,
check air-fuel
ratio as well as
control status by
engine-A/ECU.

Idle operation

0.4 V or less

À

0.6

-

1 V

(altered)

2,500 r/min

A1

*

5

Oxygen
sensor (rear)

Engine: After
warm-up

At excessive
acceleration

0 V or less

À

0.6

-

1 V (altered)

Code No.
P0136

3

13A

Item
No.

Inspection
item

Inspection condition

Normal
condition

Inspection
procedure
No.

Reference
page

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-293

Actuator Test Reference Table

M1131152500439

Item
No.

Inspection
item

Drive content

Inspection conditions

Normal
condition

Code No.
/Inspection
procedure
No.

Reference
page

01

Injector

Cut off No. 1
injector

Engine: After warm-up,
idle operation (Cut off
injectors sequentially to
check for a cylinder that
does not change engine in
idle status.

Engine is
changed
(becomes
unstable or
stalled)

Code No.
P0201

3

13A



02

Cut off No. 2
injector

Code No.
P0202

3

13A

03

Cut off No. 3
injector

Code No.
P0203

3

13A

04

Cut off No. 4
injector

Code No.
P0204

3

13A

07

Fuel pump

Drive fuel
pump to
circulate fuel

Ignition
switch: "ON"

Hold return
hose with
fingers to
feel pulse of
fuel flowing

Pulse is felt

Procedure
No. 24

3

13A

Check for
pump
operating
noise near
fuel tank

Operating
noise audible

08

Purge
control
solenoid
valve

Switch solenoid
valve from OFF
to ON

Ignition switch: "OFF"

When the valve
is actuated,
operating noise
is audible

Code No.
P0443

3

13A



10

EGR control
solenoid
valve

Switch solenoid
valve from OFF
to ON

Ignition switch: "ON"

When the valve
is actuated,
operating noise
is audible.

Code No.
P0403

3

13A

17

Basic ignition
timing

Switch engine-
ECU to ignition
timing adjusting
mode

œ

Engine: Idle operation

œ

Install timing light

5

•

BTDC

-

-

21

Fan
controller

Actuate fan
motor

œ

Ignition switch: "ON"

œ

A/C switch: ON

Fan motor is
rotated

Procedure
No. 21

3

13A

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-294

CHECK AT THE ECU TERMINALS

M1131153500175

TERMINAL VOLTAGE CHECK CHART

1. Connect a needle-nosed wire probe to a voltmeter

probe.

2. Insert the needle-nosed wire probe into each of

the engine-ECU connector terminals from the wire
side, and measure the voltage while referring to
the check chart.

NOTE:

.

1. Make the voltage measurement with the

engine-ECU connector connected.

2. You may find it convenient to pull out the

engine-ECU to make it easier to reach the
connector terminals.

3. The checks can be carried out off the order

given in the chart.

CAUTION

Short-circuiting the positive (+) probe between a
connector terminal and earth could damage the
vehicle wiring, the sensor, engine-ECU or all of
them. Be careful to prevent this!
3. If voltmeter shows any division from standard

value, check the corresponding sensor, actuator
and related electrical wiring, then repair or
replace.

4. After repair or replacement, recheck with the

voltmeter to confirm that the repair has corrected
the problem.

Engine-ECU Connector Terminal Arrangement

AK201749AB

Needle-nosed wire probe

AK300342

1

14

4

19

5

22

6

17

8

15

9

18

7

20

16

2

13

12

23 24 25 26

21

3

10 11

57 58

60 61

53

52

51

55

54

56

59

62

34

33

32

36

35

37

42

45

31

39

38

46

40 41

43 44

82

78

81

80

89 90 9192

79

87

71

74

73

72

76

75

77

85

88

83 84

86

Engine-ECU Connector

AB

C-134

C-135

C-136

C-137

Terminal
No.

Check item

Check condition (Engine condition)

Normal condition

1

No. 1 injector

While engine is idling after having warmed
up, suddenly depress the accelerator pedal.

From 11

-

14 V,

momentarily drops slightly

14

No. 2 injector

2

No. 3 injector

15

No. 4 injector

4

Stepper motor coil
<A1>

œ

Engine: Soon after the warmed up engine
is star

œ

A/C switch: OFF

“

ON (A/C compressor

is operating)

System voltage

À

1 V or

less (Changes repeatedly)

17

Stepper motor coil
<A2>

5

Stepper motor coil
<B1>

18

Stepper motor coil
<B2>

6

EGR control
solenoid Valve

Ignition switch: "ON"

System Voltage

While engine is idling, suddenly depress the
accelerator pedal.

From system voltage,
momentarily drops