Mitsubishi Galant. Manual — part 317

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-493

INJECTOR
B1

47

Injectors (bank

1)

*3

Engine:
cranking

When engine
coolant
temperature is
0

°

C (32

°

F)

13.2

−

19.8 ms -

-

When engine
coolant
temperature is
20

°

C (68

°

F)

33.2

−

49.8 ms

When engine
coolant
temperature is
80

°

C (176

°

F)

8.2

−

12.4 ms

Injectors (bank

1)

*4

•

Engine
coolant
temperature
: 80

−

95

°

C

(176

−

203

°

F)

•

Lights,
electric
cooling fan
and all
accessories
: OFF

•

Transaxle:
"P" range

Engine is idling 2.1

−

3.3 ms

2500 r/min

1.8

−

3.0 ms

When engine
is suddenly
revved

Increases

MUT-II
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE
NO.

REFER
ENCE
PAGE

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-494

INJECTOR
B2

41

Injectors (bank

2)

*3

Engine:
cranking

When engine
coolant
temperature is
0

°

C (32

°

F)

13.2

−

19.8 ms -

-

When engine
coolant
temperature is
20

°

C (68

°

F)

33.2

−

49.8 ms

When engine
coolant
temperature is
80

°

C (176

°

F)

8.2

−

12.4 ms

Injectors (bank

2)

*4

•

Engine
coolant
temperature
: 80

−

95

°

C

(176

−

203

°

F)

•

Lights,
electric
cooling fan
and all
accessories
: OFF

•

Transaxle:
"P" range

Engine is idling 2.1

−

3.3 ms

2,500 r/min

1.8

−

3.0 ms

When engine
is suddenly
revved

Increases

MANIFOLD
SNSR

95

Manifold
differential
pressure
sensor

Engine: warming up, idling

22.6

−

36.0

kPa

Code
No.P1400

P.13B-
372

PSP
SWITCH

27

Power steering
pressure
switch

Engine: idling

Steering wheel
stationary

OFF

Code
No.P0551

P.13B-
355

Steering wheel
turning

ON

TANK
PRS.
SNSR

73

Fuel tank
differential
pressure
sensor

•

Ignition switch: "ON"

•

Fuel cap removal

-3.3

−

3.3 kPa

-

-

MUT-II
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE
NO.

REFER
ENCE
PAGE

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-495

TP
SENSOR

14

Throttle
position sensor

Ignition switch:
"ON"

Set to idle
position

535

−

735 mV

(0

−

1%)

Code
No.P0121,
P0122,P01
23

P.13B-
86

,

P.13

B-
94

,

P.13

B-100

Gradually open Increases in

proportion to
throttle
opening angle

Open fully

4,500

−

5,500

mV (80

−

100%)

VAF
RESET
SIG

34

Volume air flow
sensor reset
signal

Engine:
warming up

Engine is idling ON

-

-

2,500 r/min

OFF

VAF
SENSOR

12

Volume air flow
sensor (mass

air flow rate)

*5

•

Engine
coolant
temperature
: 80

−

95

°

C

(176

−

203

°

F)

•

Lights,
electric
cooling fan
and all
accessories
: "OFF"

•

Transaxle:
"P" range

Engine is idling 17

−

46 HZ

(2.2

−

5.7 g/s)

-

-

2,500 r/min

63

−

103 Hz

(9.0

−

14.7 g/s)

Engine is
revved

Frequency (or
air flow
volume)
increases in
response to
revving

MUT-II
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE
NO.

REFER
ENCE
PAGE

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-496

CRANK
SENSOR

22

*6

Crankshaft
position

sensor

*1

•

Engine: cranking

•

Tachometer: connected

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

Code
No.P0335

P.13B-
240

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

ECT
SENSOR

21

*6

Engine coolant
temperature
sensor

Ignition switch:
"ON"or with
engine running

Engine coolant
temperature is
-20

°

C (-4

°

F)

-20 degC (-4
degF)

Code
No.P0115,
P0116,P01
17

P.13B-
65

,

P.13

B-
73

,

P.13

B-78

Engine coolant
temperature is
0

°

C (32

°

F)

0 degC(32
degF)

Engine coolant
temperature is
20

°

C (68

°

F)

20 degC(68
degF)

Engine coolant
temperature is
40

°

C(104

°

F)

40 degC (104
degF)

Engine coolant
temperature is
80

°

C (176

°

F)

80 degC (176
degF)

ENGINE
LOAD 2

87

*6

Calculation
load value

•

Engine:
warming up

Engine is idling 10

−

30%

-

-

2,500 r/min

10

−

30%

MUT-II
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE
NO.

REFER
ENCE
PAGE