Mitsubishi Outlander GS45X. Manual - part 805

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-153

DTC SET CONDITIONS <Range/Performance problem - high input>

Logic Flow Chart

.

Check Conditions

• 8 minutes or more have passed since the engine 

starting sequence was completed, when the 
engine coolant temperature at engine start is 0

°C 

(32

°F) or lower.

• Engine speed is between 500 and 1,500 r/min.

• Throttle position sensor output voltage is lower 

than 0.9 volt.

Judgement Criterion

• Manifold absolute pressure is 89 kPa (26.3 in.Hg) 

or higher for 2 seconds.

.

OBD-II DRIVE CYCLE PATTERN

Refer to Diagnostic Function 

− OBD-II Drive Cycle − 

Pattern 7 

P.13B-11

.

.

TROUBLESHOOTING HINTS (The most 
likely causes for this code to be set are: )

• Manifold absolute pressure sensor failed.

• Harness damage.

• Connector damage.

• ECM failed.

Start

Yes

Yes

Yes

No

No

No

Pressure > 89kPa (26.3in.Hg)

Continuous

failure for 2secs

Malfunction

End

Good

Monitoring

conditions

AK604311

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-154

DIAGNOSIS

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

STEP 1. Using scan tool MB991958, check data list item 8: 
Manifold Absolute Pressure Sensor.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to the data reading mode for item 

8, Manifold Absolute Pressure Sensor.

• When altitude is 0 m (0 foot), 101 kPa (29.8 in.Hg).

• When altitude is 600 m (1,969 feet), 95 kPa (28.1 in.Hg).

• When altitude is 1,200 m (3,937 feet), 88 kPa (26.0 

in.Hg).

• When altitude is 1,800 m (5,906 feet), 81 kPa (23.9 

in.Hg).

(4) Start the engine.

• When the engine is idling, 16 − 36 kPa (4.7 − 10.6 

in.Hg).

• When the engine is suddenly revved, manifold absolute 

pressure varies.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the sensor operating properly?

YES : It can be assumed that this malfunction is intermittent. 

Refer to GROUP 00, How to Use 
Troubleshooting/Inspection Service Points 

− How to 

Cope with Intermittent Malfunctions 

P.00-15

.

NO :  Go to Step 2.

STEP 2. Check harness connector B-105 at the manifold 
absolute pressure sensor and harness connector B-10 at 
ECM for damage.
Q: Is the harness connector in good condition?

YES : Go to Step 3.
NO :  Repair it. Refer to GROUP 00E, Harness Connector 

Inspection 

P.00E-2

. Then go to Step 5.

AK700568AB

MB991824

MB991827

MB991910

Data link
connector

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-155

STEP 3. Check harness connector B-105 at the manifold 
absolute pressure sensor and harness connector B-10 at 
ECM for damage.
(1) Disconnect the manifold absolute pressure sensor 

connector B-105 between the ECM connector B-10.

a. Measure the resistance between the manifold absolute 

pressure sensor connector B-105 (terminal No. 1) and 
the ECM connector B-10 (terminal No. 44).

b. Measure the resistance between the manifold absolute 

pressure sensor connector B-105 (terminal No. 2) and 
the ECM connector B-10 (terminal No. 45).

c. Measure the resistance between the manifold absolute 

pressure sensor connector B-105 (terminal No. 3) and 
the ECM connector B-10 (terminal No. 46).

• Should be less than 2 ohms.

Q: Is the harness wire in good condition?

YES : Go to step 4.
NO :  Repair it. Then go to Step 5.

STEP 4. Replace the manifold absolute pressure sensor.
(1) Replace the manifold absolute pressure sensor.
(2) Carry out a test drive with the drive cycle pattern. Refer to 

Diagnostic Function 

− OBD-II Drive Cycle − Pattern 7 

P.13B-11

.

(3) Check the diagnostic trouble code (DTC).
Q: Is DTC P0106 set?

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

register the ID code. Refer to GROUP 42B, Diagnosis 
− ID Codes Registration Judgment Table <Vehicles 

with KOS> 

P.42B-15

 or GROUP 42C, Diagnosis 

− ID 

Codes Registration Judgment Table <Vehicles with 
WCM> 

P.42C-10

. Then go to Step 5.

NO :  The inspection is complete.

STEP 5. Test 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 7 

P.13B-11

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0106 set?

YES : Retry the troubleshooting.
NO :  The inspection is complete.

AK900588

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2

1

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

3 2 1

B-105 harness connector:
component side 

B-10 harness connector:
component side 

AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-156

DTC P0107: Manifold Absolute Pressure Circuit Low Input

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AK900131

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2

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1 2 3

AD

ENGINE
CONTROL
MODULE

5 V

MANIFOLD ABSOLUTE 
PRESSURE SENSOR

BLUE

YELLO

W

-BLA

CK

GRA

Y

-BLUE

1

2

3

MANIFOLD ABSOLUTE PRESSURE SENSOR CIRCUIT

44

46

45

B-10

B-105

AK900132

AD

B-105 (B)

Connector: B-105

Manifold absolute
pressure sensor

AK700401AB

ECM

B-10 (GR)

Connector: B-10