Mitsubishi Outlander GS45X. Manual - part 895

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-513

STEP 4. Measure the 5-volt reference signal at ECM 
connector B-11 by using check harness special tool 
MB992110. 
(1) Disconnect all ECM connectors. Connect the power plant 

ECU check harness special tool MB992110 between the 
separated connectors.

(2) Turn the ignition switch to the "ON" position.
(3) Remove the fuel cap.

(4) Measure the voltage between terminal 114 and ground.

• The voltage should measure between 4.9 and 5.1 volts.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage between 4.9 and 5.1 volts?

YES : Check harness connector C-129 at intermediate 

connector for damage, and repair or replace as 
required. Refer to GROUP 00E, Harness connector 
Inspection 

P.00E-2

. If intermediate connector C-129 

is in good condition, repair it because of harness 
damage fuel tank differential pressure sensor 
connector D-19 (terminal No. 3) and ECM connector 
B-11 (terminal No. 114). Then go to Step 7 .

NO :  Replace the ECM. When the ECM is replaced, 

register the ID code. Refer to GROUP 42B, ID Code 
Registration Judgment Table <Vehicles with KOS> 

P.42B-15

 or GROUP 42C, ID Code Registration 

Judgment Table <Vehicles with WCM> 

P.42C-10

. 

Then go to Step 7 .

AK704154

ECM

AB

Body side harness 

MB992110

AK704174

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

Special tool 48-pin connector 
component side

AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-514

STEP 5. Check the harness wire between ECM connector 
B-11 and fuel tank differential pressure sensor connector 
D-19 for damage.
(1) Disconnect the connector B-11 and D-19 measure at the 

harness side.

(2) Measure the resistance between connector B-11 and 

connector D-19.

a. Connector B-11 (terminal No. 112) and connector D-19 

(terminal No. 1).

b. Connector B-11 (terminal No. 113) and connector D-19 

(terminal No. 2).

• Should be less than 2 ohms.

Q: Is the measured resistance less than 2 ohms?

YES : Go to Step 6 .
NO :  Repair the damaged harness wires. Then go to Step 7 

.

STEP 6. Replace the fuel tank differential pressure sensor.
(1) Replace the fuel tank differential pressure sensor.
(2) Carry out test drive with the drive cycle pattern. Refer to 

Diagnostic Function. OBD-II Drive Cycle. Pattern 16 

P.13B-11

.

(3) Check the diagnostic trouble code (DTC).
Q: Is DTC P0451 set?

YES : Replace the ECM. When the ECM is replaced, 

register the ID code. Refer to GROUP 42B, ID Code 
Registration Judgment Table <Vehicles with KOS> 

P.42B-15

 or GROUP 42C, ID Code Registration 

Judgment Table <Vehicles with WCM> 

P.42C-10

. 

Then go to Step 7 .

NO :  The inspection is complete.

STEP 7. Perform the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to 

Diagnostic Function 

− OBD-II Drive Cycle − Pattern 16 

P.13B-11

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0451 set?

YES : Repeat the troubleshooting.
NO :  The procedure is complete.

AK704175

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

1

2

3

D-19 harness connector:
component side 

B-11 harness connector:
component side 

AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-515

DTC P0452: Evaporative Emission Control System Pressure Sensor Low Input

AK901211

AB

I

A

C

E

D

F

G

H

Air filter

B

System diagram

Intake manifold

Evaporative emission
purge solenoid

Fuel tank

Evaporative
emission canister

Fuel tank differential
pressure sensor

Vent pipe

Evaporative emission
ventilation solenoid

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-516

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112 113 114

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108

107

110 111

115 116

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105

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117

2

8

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3

11

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19

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12

9

22

1

10

3

2

1

AK704184

3

2

1

4

2

3

114

113

112

5 V

AB

D-19

(MU802723)

C-129

B-11

ENGINE 
CONTROL 
MODULE

FUEL TANK DIFFERENTIAL PRESSURE SENSOR CIRCUIT

FUEL TANK DIFFERENTIAL 
PRESSURE SENSOR

YELLO

W

-BLA

CK

YELLO

W

-BLA

CK

BR

O

W

N

B

R

O

WN

RED-GREEN

RED-GREEN

AK704190

ECM

B-11 (GR)

Connector: B-11

AB

AK900595

Connector: C-129

C-129

AB