Content .. 976 977 978 979 ..

Mitsubishi Outlander GS45X. Manual - part 978

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-845

MAP
sensor

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.13B-150

P.13B-156

P.13B-162

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

− 36 kPa

(4.7

− 10.6

in.Hg)

When engine is suddenly
revved

Manifold
pressure
varies

Neutral
switch

Ignition switch:
"ON"

Shift lever: "P"
or "N"

−

Shift lever: "R"
or "D"

OFF

Normally
closed
brake
switch

Normally
closed brake
switch

Ignition switch:
"ON"

Depress the
brake pedal

−

Release the
brake pedal

OFF

Oil control
valve
(bank 1)

Engine oil
control valve

Engine:
warming up

Engine is idling OFF

−

5,000 r/min

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) <3.0L ENGINE>

13B-846

Oxygen
sensor
(bank1
sensor1)

Heated
oxygen
sensor bank
1, sensor 1
(right front)

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.

0.2 V or less
→ 0.6 − 1.0 V

(After several
seconds
have
elapsed)

Code No.
P0131,
P0132,
P0133,
P0134,
P2195

When engine
is suddenly
revved

0.6

− 1.0 V

Engine:
warming up
(the heated
oxygen 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 0.4
V or less and
0.6

−1.0 V.

2,500 r/min

Oxygen
sensor
(bank1
sensor2)

Heated
oxygen
sensor bank
1, sensor 2
(right rear)

• Transaxle: 2nd

• Drive with wide open throttle

• Engine: 3,500 r/min or more

0.6

− 1.0 V

Code No.
P0137,
P0138,
P0139,
P0140

Oxygen
sensor
(bank2
sensor1)

Heated
oxygen
sensor bank
2, sensor 1
(left front)

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.

0.2 V or less
→ 0.6 − 1.0 V

(After several
seconds
have
elapsed)

Code No.
P0151,
P0152,
P0153,
P0154,
P2197

When engine
is suddenly
revved

0.6

− 1.0 V

Engine:
warming up
(the heated
oxygen 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 0.4
V or less and
0.6

− 1.0 V.

2,500 r/min

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) <3.0L ENGINE>

13B-847

Oxygen
sensor
(bank2
sensor2)

Heated
oxygen
sensor bank
2, sensor 2
(left rear)

• Transaxle: 2nd

• Drive with wide open throttle

• Engine: 3,500 r/min or more

0.6

− 1.0 V

Code No.
P0157,
P0158,
P0159,
P0160

Power
steering
switch

Power
steering
pressure
switch

Engine: idling

Steering wheel
stationary

OFF

Code No.
P0551

P.13B-585

Steering wheel
turning

Power
supply
voltage

Power supply
voltage

Ignition switch: "ON"

Battery
positive
voltage

Procedure
No. 21

P.13B-804

Relative
APP
sensor

Relative
accelerator
pedal position
sensor

Ignition switch:
"ON"

Release the
accelerator
pedal

− 5 %

−

Depress the
accelerator
pedal gradually

Increases in
response to
the pedal
depression
stroke

Depress the
accelerator
pedal fully

− 100 %

Relative
TP sensor

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

− 5 %

−

Fully open the
throttle valve
with your finger

88 % or more

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) <3.0L ENGINE>

13B-848

Short
term fuel
trim (bank
1)

Short-term
fuel trim
(bank 1)

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

− 7.4 to 7.4 % Code No.

P0171,
P0172

P.13B-303

P.13B-310

Short
term fuel
trim (bank
2)

Short-term
fuel trim
(bank 2)

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

− 7.4 to 7.4 % Code No.

P0174,
P0175

P.13B-316

P.13B-323

Spark
advance

Ignition timing
advance
(bank 1)

• 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

− 43 °CA

(BTDC)

Spark
advance
(bank 2)

113 Ignition timing

advance
(bank 2)

• 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

− 43 °CA

(BTDC)

Starter
relay

102 Starter relay

Ignition switch: "ON"

OFF

−

Engine: cranking

Target
EGR

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".

− 100 %

(Display
range)

−

Target
ETV value

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".

− 5 V

(Display
range)

−

M.U.T.-III
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE
NO.

REFERENCE
PAGE

Content .. 976 977 978 979 ..