Mitsubishi Montero (2004+). Manual — part 366

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-951

APP SNS
(MAIN)

78

Accelerator
pedal position
sensor (main)

Ignition switch:
ON

Release the
accelerator
pedal

905

−

1,165 mV

Code No.
P2121,
P2122,
P2123

P.13A-735

,

P.13A-743

,

P.13A-753

Depress the
accelerator
pedal gradually

Increases
in
response
to the
pedal
depression
stroke

Depress the
accelerator
pedal fully

4,035 mV
or more

APP
SNSR
(SUB)

77

Accelerator
pedal position
sensor (sub)

Ignition switch:
ON

Release the
accelerator
pedal

905

−

1,165 mV

Code No.
P2126,
P2127,
P2128

P.13A-760

,

P.13A-768

,

P.13A-777

Depress the
accelerator
pedal gradually

Increases
in
response
to the
pedal
depression
stroke

Depress the
accelerator
pedal fully

4,035 mV
or more

BARO
SENSOR

25

Barometric
pressure
sensor

Ignition switch:
"ON"

At altitude of 0
m (0 ft)

101 kPa
(29.8
in.Hg)

Code No.
P0106,
P0107,
P0108

P.13A-51

,

P.13A-68

,

P.13A-84

At altitude of
600 m (1969 ft)

95 kPa
(28.1
in.Hg)

At altitude of
1,200 m (3937
ft)

88 kPa
(26.0
in.Hg)

At altitude of
1,800 m (5906
ft)

81 kPa
(23.9
in.Hg)

MUT-III
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPEC-
TION
PROCE-
DURE NO.

REFE-
RENCE
PAGE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-952

BATT
VOLTAGE

16

Battery voltage
(power supply)

Ignition switch: "ON"

Battery
positive
voltage

Procedure
No. 28

P.13A-908

CKP
SENSOR

22

Crankshaft
position sensor
(engine speed)

• Engine: cranking

• Tachometer: connected

Engine
speeds
displayed
on the scan
tool and
tachometer
are
identical.

Code No.
P0335

P.13A-467

Engine: idling

Engine coolant
temperature is
−20°C (−40°F)

1,300

−

1,500 r/min

Engine coolant
temperature is
0

°C (32°F)

1,300

−

1,500 r/min

Engine coolant
temperature is
20

°C (68°F)

1,300

−

1,500 r/min

Engine coolant
temperature is
40

°C (104°F)

1,040

−

1,240 r/min

Engine coolant
temperature is
80

°C (176°F)

600

− 800

r/min

CKP
SENSOR
2

38

Crankshaft
position sensor

• Engine: cranking (at less

than 2,000 r/min)

• Tachometer: connected

The
speeds
indicated
by the scan
tool and
tachometer
match.

Code No.
P0335

P.13A-467

CRANK.
SIGNAL

18

Crank signal
(Ignition
switch

−ST)

Ignition switch:
"ON"

Engine:
stopped

OFF

Procedure
No. 30

P.13A-929

Engine:
cranking

ON

MUT-III
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPEC-
TION
PROCE-
DURE NO.

REFE-
RENCE
PAGE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-953

ECT
SENSOR

21

Engine coolant
temperature
sensor

Ignition switch:
"ON" or with
engine running

Engine coolant
temperature is
−20°C (−4°F)

−20°C

(

−4°F)

Code No.
P0116,
P0117,
P0118

P.13A-114

,

P.13A-125

,

P.13A-130

Engine coolant
temperature is
0

°C (32°F)

0

°C (32°F)

Engine coolant
temperature is
20

°C (68°F)

20

°C

(68

°F)

Engine coolant
temperature is
40

°C(104°F)

40

°C

(104

°F)

Engine coolant
temperature is
80

°C (176°F)

80

°C

(176

°F)

ECT
SENSOR

21*

5

Engine coolant
temperature
sensor

Ignition switch:
"ON" or with
engine running

Engine coolant
temperature is
−20°C (−4°F)

−20°C

(

−4°F)

Code No.
P0116,
P0117,
P0118

P.13A-114

,

P.13A-125

,

P.13A-130

Engine coolant
temperature is
0

°C (32°F)

0

°C (32°F)

Engine coolant
temperature is
20

°C (68°F)

20

°C

(68

°F)

Engine coolant
temperature is
40

°C (104°F)

40

°C

(104

°F)

Engine coolant
temperature is
80

°C (176°F)

80

°C

(176

°F)

EGR
STEP.
MTR.

68

EGR valve
(stepper motor)

• Engine

coolant
temperature
:80

− 95°C

(176

−

203

°F)

• Lights and

all
accessories
: "OFF"*

6

• Transmission

:"P" range

Engine is idling 0

− 5 STEP Code No.

P0403

P.13A-504

2,500 r/min

0

− 10

STEP

MUT-III
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPEC-
TION
PROCE-
DURE NO.

REFE-
RENCE
PAGE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-954

ENGINE
LOAD

37

Engine load
(volumetric
efficiency)

• Engine

coolant
temperature
: 80

− 95°C

(176

−

203

°F)

• Lights,

electric
cooling fan
and all
accessories
: "OFF"*

6

• Transmission

: "P" range

Engine is idling 15

− 35%

−

−

2,500 r/min

15

− 35%

Racing

Volumetric
efficiency
increases
according
to amount
of revving.

ENGINE
LOAD 2

87*

5

Calculated
load value

Engine:
warming up

Engine is idling 12

− 27%

−

−

2,500 r/min

12

− 25%

ENGINE
SPEED

22*

5

Crankshaft
position sensor
(engine speed)
*

2

• Engine: cranking

• Tachometer: connected

Engine
speeds
displayed
on the scan
tool and
tachometer
are
identical.

Code No.
P0335

P.13A-467

Engine: idling

Engine coolant
temperature is
−20°C (−4°F)

1,300

−

1,500 r/min

Engine coolant
temperature is
0

°C (32°F)

1,300

−

1,500 r/min

Engine coolant
temperature is
20

°C (68°F)

1,300

−

1,500 r/min

Engine coolant
temperature is
40

°C (104°F)

1,040

−

1,240 r/min

Engine coolant
temperature is
80

°C (176°F)

600

− 800

r/min

FUEL
TEMP

4A

Fuel tank
temperature
sensor

In cooled srateignittion switch:
"ON"

Approxi-
mately the
same as
the outdoor
tempe-
rature

Code No.
P0181,
P0182,
P0183

P.13A-396

,

P.13A-406

,

P.13A-412

MUT-III
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPEC-
TION
PROCE-
DURE NO.

REFE-
RENCE
PAGE