Mitsubishi 380. Manual — part 505

MULTIPOINT FUEL INJECTION (MPI) DIAGNOSIS

MULTIPOINT FUEL INJECTION (MPI)

13A-112

STEP 3. Check harness connector B-02 at the manifold
absolute pressure sensor and harness connector B-20 at
ENGINE-ECU for damage.
Q: Is the harness connector in good condition?

YES : Go to Step 4.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 7.

1

2

3

CONNECTOR: B-02

03DB223A

MANIFOLD

ABSOLUTE

PRESSURE

SENSOR

INTAKE

MANIFOLD

B-02 (B)

HARNESS

CONNECTOR:

COMPONENT SIDE

16DB400A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER

MULTIPOINT FUEL INJECTION (MPI) DIAGNOSIS

MULTIPOINT FUEL INJECTION (MPI)

13A-113

STEP 4. Check for open circuit between manifold absolute
pressure sensor connector B-02 (terminal No. 2) and
ENGINE-ECU connector B-20 (terminal No. 12).
Q: Is the harness wire in good condition?

YES : Go to Step 5.
NO : Repair it. Then go to Step 7.

1

2

3

CONNECTOR: B-02

03DB223A

MANIFOLD

ABSOLUTE

PRESSURE

SENSOR

INTAKE

MANIFOLD

B-02 (B)

HARNESS

CONNECTOR:

COMPONENT SIDE

16DB400A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER

MULTIPOINT FUEL INJECTION (MPI) DIAGNOSIS

MULTIPOINT FUEL INJECTION (MPI)

13A-114

STEP 5. Refer to data checked in Step 1.
(1) Use the data recorded during Step 1 of diagnosis flow.

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.00-14

.

NO : Replace the ENGINE-ECU. Then go to Step 7.

STEP 6. Check harness connector B-02 at the manifold
absolute pressure sensor and harness connector B-20 at
ENGINE-ECU for damage.
Q: Is the harness connector in good condition?

YES : Replace the manifold absolute pressure sensor. Then

go to Step 7.

NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 7.

00DB076A

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

1

2

3

CONNECTOR: B-02

03DB223A

MANIFOLD

ABSOLUTE

PRESSURE

SENSOR

INTAKE

MANIFOLD

B-02 (B)

HARNESS

CONNECTOR:

COMPONENT SIDE

16DB400A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER

MULTIPOINT FUEL INJECTION (MPI) DIAGNOSIS

MULTIPOINT FUEL INJECTION (MPI)

13A-115

STEP 7. Test the EOBD drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to

Diagnostic Function

− EOBD Drive Cycle −

P.13A-11

.

(2) Check the diagnostic trouble code (DTC).

Q: Is DTC P0108 set?

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