Mitsubishi 380. Manual - part 645

INJECTOR

MULTIPORT FUEL INJECTION (MPI) <3.8L ENGINE>

13A-672

INJECTOR

REMOVAL AND INSTALLATION

M1131007100768

Pre-removal Operation
• Fuel Discharge Prevention (Refer to 

P.13A-663

).

• Intake Manifold Plenum Removal (Refer to GROUP 15, 

Intake Manifold Plenum 

P.15-5

).

Post-installation Operation
• Intake Manifold Plenum Installation (Refer to GROUP 15, 

Intake Manifold Plenum 

P.15-5

).

• Fuel Leakage Inspection.

03DB144A

1

1

3

6

5

10

9

8

7

11

N

2

12 ± 1 N·m

102 ± 13 in-lb

9

8

7

N

APPLY ENGINE OIL

TO ALL MOVING

PARTS BEFORE 

INSTALLATION.

36 ± 6 N·m

27 ± 4 ft-lb

REMOVAL STEPS

1.

INJECTOR CONNECTOR

2.

ENGINE MOUNT STAY

>>A<<

3.

FUEL HIGH-PRESSURE HOSE 
CONNECTION (FUEL RAIL SIDE)

5.

BLOW-BY HOSE CONNECTION

<<A>>

6.

FUEL RAIL AND INJECTOR 
ASSEMBLY

7.

INSULATORS

>>A<<

8.

FUEL  INJECTORS

>>A<<

9.

O-RING

10. FUEL RAIL
11. INSULATORS

REMOVAL STEPS (Continued)

INJECTOR

MULTIPORT FUEL INJECTION (MPI) <3.8L ENGINE>

13A-673

REMOVAL SERVICE POINTS

.

<<A>> FUEL RAIL AND INJECTOR ASSEMBLY 
REMOVAL

CAUTION

Do not drop the fuel injector.
Remove the fuel rail with the fuel injectors attached to it.

INSTALLATION SERVICE POINT

.

>>A<< O-RING/FUEL INJECTORS/FUEL 
HIGH-PRESSURE HOSE CONNECTION (FUEL 
RAIL SIDE) INSTALLATION

CAUTION

• Do not kink the fuel high-pressure hose as it is made of 

plastics.

• Do not let the engine oil get into the fuel rail.

1. Apply a drop of new engine oil to the O-ring.

2. Turn the fuel injector to the right and left to install to the fuel 

rail. Repeat for fuel damper and fuel high-pressure hose. Be 
careful not to damage the O-ring. After installing, check that 
they turn smoothly.

3. If some of them dose not turn smoothly, the O-ring may be 

trapped, remove it, re-install it into the fuel rail and check 
again.

4. Connect fuel hose to rail.

.

CAUTION

Connect the fuel high-pressure hose, and then pull it gen-
tly in the direction of removal to check that the hose is 
firmly connected.
Apply clean engine oil to the tips of the main pipe nozzle and 
the fuel main pipe, and connect connector of the fuel high-pres-
sure hose to them.

AC209221

CONNECTOR

MAIN PIPE NOZZLE OR
FUEL MAIN PIPE

AB

THROTTLE BODY ASSEMBLY

MULTIPORT FUEL INJECTION (MPI) <3.8L ENGINE>

13A-674

THROTTLE BODY ASSEMBLY

REMOVAL AND INSTALLATION

M1131007700652

WARNING

If the air intake duct is removed from the throttle body take great care to keep fingers away 
from the throttle plate. The drive motor has very high torque and is capable of random move-
ment at any time. Do not under any circumstances activate the throttle plate by hand.
When removing the throttle body from the intake manifold disconnect the wiring first. During 
replacement connect the wiring last.
Do not activate the throttle body using a DC suppy to test the motor,as permanent damage to 
the throttle body will result.

Pre-removal Operation
• Air Intake Hose Removal (Refer to GROUP 15, Air 

Cleaner 

P.15-4

).

Post-installation Operation
• Air Intake Hose Installation (Refer to GROUP 15, Air 

Cleaner 

P.15-4

).

03DB155A

2

3 

1

N

28 ± 4 N·m

21 ± 3 ft-lb

REMOVAL STEPS

1.

THROTTLE POSITION SENSOR 
CONNECTOR

2.

THROTTLE BODY

>>A<<

3.

THROTTLE BODY GASKET

REMOVAL STEPS (Continued)

ENGINE CONTROL UNIT (ECU)

MULTIPORT FUEL INJECTION (MPI) <3.8L ENGINE>

13A-675

INSTALLATION SERVICE POINT

.

>>A<<THROTTLE BODY GASKET INSTALLATION

CAUTION

Poor idling etc. may result if the throttle body gasket is 
installed incorrectly.
Install the gasket as its protrusion is in the direction shown.

ENGINE CONTROL UNIT (ECU)

REMOVAL AND INSTALLATION

M1131033400243

CAUTION

Ensure Ignition key is turned "OFF" and battery terminals are disconnected prior to removal of the 
ENGINE ECU.

NOTE: When replacing ENGINE-ECU with a new unit VIN Writing and Key Registration will be required.

03DB188A

PROJECTION

03DB264A

1

2

3

4

REMOVAL STEPS

1.

COVER

2.

ENGINE-ECU CONNECTOR

3.

ECU MOUNTING BRACKET

4.

A/T ECU - A/T VEHICLE ONLY

REMOVAL STEPS (Continued)