Mitsubishi Galant (2004+). Manual - part 1350

 

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Mitsubishi Galant (2004+). Manual - part 1350

 

 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>

13B-1093

APP 
SNSR 
(SUB)

77

Accelerator 
pedal position 
sensor (sub)

Ignition switch: 
"ON"

Release the 
accelerator 
pedal

400 

− 1,000  

mV

Code No. 
P2127, 
P2128

P.13B-9
06

, 

P.13B-9
16

Depress the 
accelerator 
pedal gradually

Increases in 
response to 
the pedal 
depression 
stroke

Depress the 
accelerator 
pedal fully

3,700 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. 
P2227, 
P2228, 
P2229

P.13B-9
43

, 

P.13B-9
45

, 

P.13B-9
47

At altitude of 
600 m (1,969 
ft)

95 kPa (28.1 
in.Hg)

At altitude of 
1,200 m (3,937 
ft)

88 kPa (26.0 
in.Hg)

At altitude of 
1,800 m (5,906 
ft)

81 kPa (23.9 
in.Hg)

BATT 
VOLTAGE

16

Power supply 
voltage

Ignition switch: "ON"

Battery positive 
voltage

Procedure 
No. 28

P.13B-1
050

CKP 
SNSR

22

Crankshaft 
position sensor 

• Engine: cranking

• Tachometer: connected

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

Code No. 
P0335

P.13B-5
83

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)

580 

− 780 

r/min

MUT-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) <3.8L ENGINE>

13B-1094

CKP 
SNSR 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.13B-5
83

CRANK. 
SIGNAL

18

Cranking 
signal (ignition 
switch -ST)

Ignition switch: 
"ON"

Engine: 
stopped

OFF

Procedure 
No. 30

P.13B-1
074

Engine: 
cranking

ON

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.13B-1
29

, 

P.13B-1
38

, 

P.13B-1
45

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*

4

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.13B-1
29

, 

P.13B-1
38

, 

P.13B-1
45

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)

MUT-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) <3.8L ENGINE>

13B-1095

EGR 
STEP. 
MTR.

68

EGR valve 
(stepper motor)

• Engine 

coolant 
temperature
:80 

− 95°C 

(176 

− 

203

°F)

• Lights and 

all  
accessories
: "OFF"*

5

• Transaxle:"P"

 range

Engine is idling 2 

− 8 STEP

Code No. 
P0403

P.13B-6
25

2,500 r/min

2 

− 8 STEP

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

• Transaxle:"P"

 range

Engine is idling 14 

− 24%

−

−

2,500 r/min

11 

− 21%

Revving 
engine

Volumetric 
efficiency 
increases 
according to 
amount of 
revving.

ENGINE 
LOAD

87*

4

Calculated 
load value

Engine: 
warming up

Engine is idling 14 

− 24%

−

−

2,500 r/min

11 

− 21%

ENGINE 
SPEED

22*

4

Crankshaft 
position sensor 

• Engine: cranking

• Tachometer: connected

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

Code No. 
P0335

P.13B-5
83

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)

580 

− 780 

r/min

MUT-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) <3.8L ENGINE>

13B-1096

FUEL 
TEMP

4A

Fuel tank 
temperature 
sensor

• In cooled state 

• Ignittion  switch: "ON"

Approximately 
the same as 
the outdoor 
temperature

Code No. 
P0181, 
P0182, 
P0183

P.13B-4
41

, 

P.13B-4
53

, 

P.13B-4
60

HO2S 
BANK1 
S1

39

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.

200 mV or less Code No. 

P0130, 
P0131, 
P0132, 
P0133, 
P0134

P.13B-1
89

, 

P.13B-2
07

, 

P.13B-2
14

, 

P.13B-2
20

, 

P.13B-2
26

When engine 
is suddenly 
revved.

600 

− 1,000 

mV

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 PCM.)

Engine is idling Voltage 

changes 
repeatedly 
between 400 
mV or less and 
600 

− 1,000 

mV.

2500 r/min

HO2S 
BANK1 
S1

A1*

4

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 

Code No. 
P0130, 
P0131, 
P0132, 
P0133, 
P0134

P.13B-1
89

, 

P.13B-2
07

, 

P.13B-2
14

, 

P.13B-2
20

, 

P.13B-2
26

When engine 
is suddenly 
revved.

0.6 

− 1 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 PCM.)

Engine is idling Voltage 

changes 
repeatedly 
between 0.4 V 
or less and 0.6 
− 1 V.

2500 r/min

MUT-III SCAN 
TOOL DISPLAY

ITEM NO. 

INSPECTION ITEM

INSPECTION REQUIREMENT

NORMAL CONDITION

INSPECTION 
PROCEDURE NO.

REFERENCE 
PAGE

 

 

 

 

 

 

 

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