Mitsubishi Montero (2002-2004). Manual — part 570

DATA LIST REFERENCE TABLE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

13Ab-37

INJECTOR
BNK1

47

Injectors bank
1 (right)*

2

Engine:
cranking

When engine
coolant
temperature is
0

°C (32 °F)

100

− 160 mS -

-

When engine
coolant
temperature is
20

°C (68 °F)

37

− 67 mS

When engine
coolant
temperature is
80

°C (176 °F)

9.5

− 11.5 mS

Injectors bank
1 (right)*

3

• Engine

coolant
temperature
: 80

− 95°C

(176

−

203

°F)

• Lights,

electric
cooling fan
and all
accessories
: OFF

• Transmission:

"P" range

Engine is idling 2.2

− 3.4 mS

2,500 r/min

2.0

− 3.2 mS

When engine is
suddenly
revved

Increases

INJECTOR
BNK2

41

Injectors bank
2 (left)*

2

Engine:
cranking

When engine
coolant
temperature is
0

°C (32°F)

100

− 160 mS -

-

When engine
coolant
temperature is
20

°C (68°F)

37

− 67 mS

When engine
coolant
temperature is
80

°C (176°F)

9.5

− 11.5 mS

Injectors bank
2 (left)*

3

• Engine

coolant
temperature
: 80

− 95°C

(176

−

203

°F)

• Lights,

electric
cooling fan
and all
accessories
: OFF

• Transmission:

"P" range

Engine is idling 2.2

− 3.4mS

2,500 r/min

2.0

− 3.2mS

When engine is
suddenly
revved

Increases

MUT-II
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE
NO.

REFERENCE
PAGE

DATA LIST REFERENCE TABLE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

13Ab-38

LONG
TRIM B1

81*

5

Long-term fuel
trim (trim) bank
1

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

-12.5

− 12.5% Code No.

P0171, P0172

P.13Ac-273

,

P.13Ac-280

LONG
TRIM B2

83*

5

Long-term fuel
trim (trim) bank
2

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

-12.5

− 12.5% Code No.

P0174, P0175

P.13Ac-284

,

P.13Ac-291

MDP
SENSOR

95

Manifold
differential
pressure
sensor

Engine: warming up, idling

20.6

− 34.0

kPa (6.1

−

10.0 in.Hg)

Code No.
P1400

P.13Ac-557

PSP
SWITCH

27

Power steering
pressure
switch

Engine: idling

Steering wheel
stationary

OFF

Code No.
P0551

P.13Ac-519

Steering wheel
turning

ON

SHORT
TRIM B1

82*

5

Short-term fuel
trim (trim) bank
1

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

-12.5

− 12.5% Code No.

P0171, P0172

P.13Ac-273

,

P.13Ac-280

SHORT
TRIM B2

84*

5

Short-term fuel
trim (trim) bank
2

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

-12.5

− 12.5% Code No.

P0174, P0175

P.13Ac-284

,

P.13Ac-291

SYS.
STATUS
B1

88*

5

Fuel control
system status
bank 1 (right)

Engine:
warming up

2,500 r/min

Closed loop

Code No.
P0134

P.13Ac-133

When engine is
suddenly
revved

Open loop

−

drive
condition

SYS.
STATUS
B2

89*

5

Fuel control
system status
bank 2 (left)

Engine:
warming up

2,500 r/min

Closed loop

Code No.
P0154

P.13Ac-217

When engine is
suddenly
revved

Open loop

−

drive
condition

TANK
PRS.
SNSR

73

Fuel tank
differential
pressure
sensor

• Ignition switch: "ON"

• Fuel cap removal

−3.3 − 3.3

kPa
(

−0.97 − 0.97

in.Hg)

-

-

MUT-II
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE
NO.

REFERENCE
PAGE

DATA LIST REFERENCE TABLE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

13Ab-39

TP SNSR
(MAIN)

79

Throttle
position sensor
(main)*

4

• Remove the

intake air
hose at the
throttle body

• Disconnect

the throttle
position
sensor, and
then
connect
terminal
numbers
No. 1, No.
2, No. 3 and
No. 4 with
the use of
the special
tool:
MB991348.

• Ignition

switch: ON

Fully close the
throttle valve
with your finger

200

− 800 mV Code No.

P0122, P0123

P.13Ac-81

,

P.13Ac-89

Fully open the
throttle valve
with your finger

3,800

− 4,900

mV

No load

450

− 1,000

mV

A/C switch: "OFF"

→ "ON"

Voltage rises

• A/C switch: "OFF"

• Shift lever: "N" → "D"

TP LEARN
MID

9A

Throttle
position sensor
(main)
mid opening
learning value

Ignition switch: ON

500

− 2,000

mV

Code No.
P0122, P0123

P.13Ac-81

,

P.13Ac-89

MUT-II
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE
NO.

REFERENCE
PAGE

DATA LIST REFERENCE TABLE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

13Ab-40

TP SNSR
(SUB)

14

Throttle
position sensor
(sub)*

4

• Remove the

intake air
hose at the
throttle body

• Disconnect

the throttle
position
sensor, and
then
connect
terminal
numbers
No. 1, No.
2, No. 3 and
No. 4 with
the use of
the special
tool:
MB991348.

• Ignition

switch: ON

Fully close the
throttle valve
with your finger

2,200

− 2,800

mV

Code No.
P0222, P0223

P.13Ac-330

,

P.13Ac-338

Fully open the
throttle valve
with your finger

3,800

− 4,900

mV

TP SNSR
(MAIN)

8A*

5

Throttle
position sensor
(main)*

4

• Remove the

intake air
hose at the
throttle body

• Disconnect

the throttle
position
sensor, and
then
connect
terminal
numbers
No. 1, No.
2, No. 3 and
No. 4 with
the use of
the special
MB991348
tool.

• Ignition

switch: ON

Fully close the
throttle valve
with your finger

0

− 10 %

Code No.
P0122, P0123

P.13Ac-81

,

P.13Ac-89

Fully open the
throttle valve
with your finger

80

− 100 %

No load

450

− 1,000

mV

A/C switch: "OFF"

→ "ON"

Voltage rises

• A/C switch: "OFF"

• Shift lever: "N" → "D"

VAF
RESET
SIG

34

Volume airflow
sensor reset
signal

Engine:
warming up

Engine is idling ON

-

-

2,500 r/min

OFF

MUT-II
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE
NO.

REFERENCE
PAGE