Mitsubishi Outlander GS45X. Manual - part 751

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-827

LAFS 
(front)

E1

Linear air-fuel 
ratio sensor

Engine: warming 
up (Air/fuel 
mixture is made 
leaner when 
decelerating and 
is made richer 
when revving)

When the 
engine is 
running at 
4,000 r/min, 
decelerate 
suddenly.

3.5 V or more 
→ 2.0 V or 

less (After 
several 
seconds have 
elapsed)

Code No. 
P0130, 
P0131, 
P0132, 
P0133, 
P0134, 
P2237, 
P2243, 
P2251

P.13A-218

, 

P.13A-223

, 

P.13A-228

, 

P.13A-233

, 

P.13A-236

, 

P.13A-672

, 

P.13A-677

, 

P.13A-682

When engine 
is suddenly 
revved

2.0 V or less

Engine: warming 
up (the linear 
air-fuel ratio 
sensor signal is 
used to check 
the air/fuel 
mixture ratio, 
and control 
condition is also 
checked by the 
ECM.) 

Engine is 
idling

Voltage 
changes 
repeatedly 
between 2.25 
V or less and 
2.35 V or 
more.

2,500 r/min

Learned 
knock 
retard

33

Knock control 
learned value

Ignition switch: "ON"

• The learning value is 

shown, which 
compensates the ignition 
time based on the knock 
sensor.

• "0 %" means "retard angle" 

and "100 %" means 
"advance angle".

0 

− 100 % 

(Display 
range)

−

−

Long term 
fuel trim 
(bank 1)

26

Long-term fuel 
trim

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

− 12.5 to 12.5 

%

Code No. 
P0171, 
P0172

P.13A-262

, 

P.13A-268

M.U.T.-III 
SCAN TOOL 
DISPLAY

ITEM 
NO. 

INSPECTION ITEM INSPECTION REQUIREMENT

NORMAL 
CONDITION

INSPECTION 
PROCEDURE 
NO.

REFERENCE 
PAGE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-828

MAP 
sensor

8

Manifold 
absolute 
pressure 
sensor

Ignition switch: 
"ON"

Engine 
stopped [At 
altitude of 0 m 
(0 ft.)]

101 kPa (29.8 
in.Hg)

Code No. 
P0106, 
P0107, 
P0108

P.13A-139

, 

P.13A-148

, 

P.13A-156

Engine 
stopped [At 
altitude of 600 
m (1,969 ft.)]

95 kPa (28.1 
in.Hg)

Engine 
stopped [At 
altitude of 
1,200 m 
(3,937 ft.)]

88 kPa (26.0 
in.Hg)

Engine 
stopped [At 
altitude of 
1,800 m 
(5,906 ft.)]

81 kPa (23.9 
in.Hg)

Engine: warming up, idling

16 

− 36 kPa 

(4.7 

− 10.6 

in.Hg)

When engine is suddenly revved Manifold 

pressure 
varies

Neutral 
switch

87

Neutral switch Ignition switch: 

"ON"

Shift lever: "P" 
or "N"

ON

−

−

Shift lever: 
except "P" 
and "N"

OFF

Normally 
closed 
brake 
switch

89

Normally 
closed brake 
switch

Ignition switch: 
"ON"

Depress the 
brake pedal

ON

−

−

Release the 
brake pedal

OFF

Oxygen 
sensor 
(bank1 
sensor2)

AD

Heated 
oxygen sensor 
(rear)

• Transaxle: 2 nd

• Drive with wide open throttle

• Engine: 3,500 r/min or more

0.6 

− 1.0 V

Code No. 
P0137, 
P0138, 
P0139, 
P0140

P.13A-241

, 

P.13A-249

, 

P.13A-253

, 

P.13A-258

Power 
steering 
switch

83

Power 
steering 
pressure 
switch

Engine: idling

Steering 
wheel 
stationary

OFF

Code No. 
P0551

P.13A-528

Steering 
wheel turning

ON

M.U.T.-III 
SCAN TOOL 
DISPLAY

ITEM 
NO. 

INSPECTION ITEM INSPECTION REQUIREMENT

NORMAL 
CONDITION

INSPECTION 
PROCEDURE 
NO.

REFERENCE 
PAGE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-829

Power 
supply 
voltage

1

Power supply 
voltage

Ignition switch: "ON"

Battery 
positive 
voltage

Procedure 
No. 22

P.13A-777

Relative 
APP 
sensor

DD

Relative 
accelerator 
pedal position 
sensor

Ignition switch: 
"ON"

Release the 
accelerator 
pedal

0 

− 5 %

−

−

Depress the 
accelerator 
pedal 
gradually

Increases in 
response to 
the pedal 
depression 
stroke

Depress the 
accelerator 
pedal fully

95 

− 100%

Relative 
TP sensor

BC

Relative 
throttle 
position 
sensor

• Remove the 

intake air 
hose at the 
throttle body

• Disconnect 

the throttle 
position 
sensor 
connector, 
and then 
connect 
terminals 
numbers No. 
3, No. 4, No. 
5 and No. 6 
with the use 
of the special 
tool: 
MB991658.

• Ignition 

switch: "ON"

Fully close the 
throttle valve 
with your 
finger

0 

− 5 %

−

−

Fully open the 
throttle valve 
with your 
finger

88 % or more

Short term 
fuel trim 
(bank 1)

28

Short-term fuel 
trim

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

−7.4 to 7.4 % Code No. 

P0171, 
P0172

P.13A-262

, 

P.13A-268

Spark 
advance

16

Ignition timing 
advance

• Engine: 

warming up

• Timing light is 

set (to check 
actual ignition 
timing)

• Transaxle: 

"P" range

Engine is 
idling

2 

− 18° CA

 (BTDC)

−

−

2,500 r/min

34 

− 46° CA

 (BTDC)

Starter 
relay

102 Starter relay

Ignition switch: "ON"

OFF

Procedure 
No. 24

 

P.13A-795

Engine: Cranking

ON

M.U.T.-III 
SCAN TOOL 
DISPLAY

ITEM 
NO. 

INSPECTION ITEM INSPECTION REQUIREMENT

NORMAL 
CONDITION

INSPECTION 
PROCEDURE 
NO.

REFERENCE 
PAGE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-830

Target 
EGR

BA

Target EGR 
valve (stepper 
motor)

• The target duty ratio of the 

EGR valve driving is shown.

• "0 %" means "fully closed 

EGR valve" and "100 %" 
means "fully opened EGR 
valve".

0 

− 100 % 

(Display 
range)

−

−

Target 
ETV value

59

Throttle 
actuator 
control motor 
target value

Engine: warming up

• The target opening degree 

of the throttle valve is 
shown.

• "0 V" means "fully closed 

throttle valve" and "5 V" 
means "fully opened 
throttle valve".

0 

− 5 V 

(Display 
range)

−

−

Target idle 
speed

3

Target idle 
speed

Engine: idling

Engine 
coolant 
temperature 
is 

−20°C 

(

−4°F)

1,300 

− 1,500 

r/min

−

−

Engine 
coolant 
temperature 
is 0

°C (32°F)

1,250 

− 1,500 

r/min

Engine 
coolant 
temperature 
is 20

°C (68°F)

1,100 

− 1,500 

r/min

Engine 
coolant 
temperature 
is 40

°C 

(104

°F)

950 

− 1,350 

r/min

Engine 
coolant 
temperature 
is 80

°C 

(176

°F)

550 

− 750 

r/min

Throttle 
actuator

58

Throttle 
actuator 
control motor

Engine: warming up

• The target opening degree 

of the throttle valve is 
shown.

• "0 %" means "fully closed 

throttle valve" and "100 %" 
means "fully opened 
throttle valve".

0 

− 100 % 

(Display 
range)

−

−

M.U.T.-III 
SCAN TOOL 
DISPLAY

ITEM 
NO. 

INSPECTION ITEM INSPECTION REQUIREMENT

NORMAL 
CONDITION

INSPECTION 
PROCEDURE 
NO.

REFERENCE 
PAGE