Mitsubishi Outlander GS45X. Manual - part 756

 

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Mitsubishi Outlander GS45X. Manual - part 756

 

 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-847

TERMINAL RESISTANCE AND CONTINUITY CHECK

AK700420

82 81 80 79 78 77 76 75 74 73 72 71

94 93 92 91 90 89 88 87 86 85 84 83

99 98 97 96 95

100

101

102

103

104

105

106

112

113

114

109 108

107

110

111

115

116

117

118

16 15 14 13 12 11 10 9 8 7 6 5 4 3

2

1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

AB

B-10

B-11

ECM Harness side Connector Terminal Arrangement

TERMINAL 
NO. 

INSPECTION ITEM

NORMAL CONDITION (INSPECTION 
CONDITION)

− 82

Intake engine oil control valve

6.9 

− 7.9 Ω [at 20°C (68°F)]

15 

− 16

Throttle actuator control motor

0.3 

− 80 Ω [at 20°C (68°F)]

17 

− 82

Exhaust engine oil control valve

6.9 

− 7.9 Ω [at 20°C (68°F)]

26 

− 27

Engine coolant temperature sensor

14 

− 17 kΩ [when engine coolant temperature 

is 

−20°C (−4°F)]

5.1 

− 6.5 kΩ [when engine coolant temperature 

is 0

°C (32°F)]

2.1 

− 2.7 kΩ [when engine coolant temperature 

is 20

°C (68°F)]

0.9 

− 1.3 kΩ [when engine coolant temperature 

is 40

°C (104°F)]

0.48 

− 0.68 kΩ [when engine coolant 

temperature is 60

°C (140°F)]

0.26 

− 0.36 kΩ [when engine coolant 

temperature is 80

°C (176°F)]

31 

− 82

EGR valve [Stepper motor coil (A)]

20 

− 24 Ω [at 20°C (68°F)]

32 

− 82

EGR valve [Stepper motor coil (B)]

47 

− 82

EGR valve [Stepper motor coil (C)]

48 

− 82

EGR valve [Stepper motor coil (D)]

34 

− 82

Linear air-fuel ratio sensor heater

2.3 

− 4.2 Ω [at 20°C (68°F)]

35 

− 82

Heated oxygen sensor (rear) heater

4.5 

− 8.0 Ω [at 20°C (68°F)]

37 

− 82

Evaporative emission purge solenoid

22 

− 26 Ω [at 20°C (68°F)]

71 

− Body 

ground

ECM ground

Continuity (2 

Ω or less)

81 

− Body 

ground
83 

− Body 

ground
93 

− Body 

ground
82 

− 117

Evaporative emission ventilation solenoid

17 

− 21 Ω [at 20°C (68°F)]

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-848

INSPECTION PROCEDURE USING AN OSCILLOSCOPE

M1131154502248

INTAKE CAMSHAFT POSITION SENSOR AND 
CRANKSHAFT POSITION SENSOR

Required Special Tools:

• MB991709: Test Harness

• MB992110: Power Plant ECU Check Harness

.

Measurement Method 

1. Disconnect the intake camshaft position sensor connector, 

and connect the test harness special tool (MB991709) 
between the separated connector (All terminals should be 
connected).

2. Connect the oscilloscope probe to intake camshaft position 

sensor connector terminal No. 3.

3. Disconnect the crankshaft position sensor connector, and 

connect the test harness special tool (MB991709) between 
the separated connector.

4. Connect the oscilloscope probe to crankshaft position 

sensor connector terminal No. 3.

88 

− 89

Intake air temperature sensor

13 

− 17 kΩ [when intake air temperature is 

−20°C (−4°F)]
5.4 

− 6.6 kΩ [when intake air temperature is 

0

°C (32°F)]

2.3 

− 3.0 kΩ [when intake air temperature is 

20

°C (68°F)]

1.0 

− 1.65 kΩ [when intake air temperature is 

40

°C (104°F)]

0.56 

− 0.76 kΩ [when intake air temperature is 

60

°C (140°F)]

0.31 

− 0.43 kΩ [when intake air temperature is 

80

°C (176°F)]

98 

− 101

Battery temperature sensor

4.9 

− 5.3 kΩ [when intake air temperature is 

0

°C (32°F)]

2.2 

− 2.6 kΩ [when intake air temperature is 

20

°C (68°F)]

1.0 

− 1.4 kΩ [when intake air temperature is 

40

°C (104°F)]

TERMINAL 
NO. 

INSPECTION ITEM

NORMAL CONDITION (INSPECTION 
CONDITION)

AK604465

3

2

1

AD

Intake camshaft position
sensor connector

Oscilloscope

MB991709

AK704086

3

2

1

AB

Crankshaft position
sensor connector

Oscilloscope

MB991709

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-849

.

Alternate method 

1. Disconnect all ECM connectors. Connect the check harness 

special tool (MB992110) between the separated connectors.

2. Connect the oscilloscope to check harness terminal No. 14. 

(Check the intake camshaft position sensor signal wave 
pattern.)

3. Connect the oscilloscope to check harness terminal No. 8. 

(Check the crankshaft position sensor signal wave pattern.)

Standard Wave Pattern

Observation condition

Function

Special pattern

Pattern height

Low

Pattern selector

Display

Engine condition

Idle

16 15 14 13 12 11 10 9 8 7 6 5 4 3

2

1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

AK604467AB

Power plant ECU
check harness connector

MB992110

AK604468

16 15 14 13 12 11 10 9 8 7 6 5 4 3

2

1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

Oscilloscope

Power plant ECU
check harness
connector

AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-850

Wave Pattern Observation Points

1. Check that cycle time becomes shorter when the engine 

speed increased.

.

Examples of Abnormal Wave Patterns

Example 1
Cause of problem

• Sensor interface malfunction.

Wave pattern characteristics

• Rectangular wave pattern is output even when the 

engine is not started.

Example 2
Cause of problem

• Loose timing belt.

• Abnormality in sensor disc.

Wave pattern characteristics

• Wave pattern is displaced to the left or right.

AK703715

AB

Crankshaft position 
sensor output wave
pattern

2 engine revolutions (1 camshaft revolution)

(Volt)

5

0

5

0

No. 1TDC

No. 3TDC

No. 4TDC

No. 2TDC

(ms)

Intake camshaft
position sensor
output ware pattern

Standard wave pattern

AK604469 AB

AK604470

AB

 

 

 

 

 

 

 

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