Mitsubishi Grandis. Manual — part 786

INJECTOR

MULTIPORT FUEL INJECTION (MPI)

13A-395

INJECTOR

REMOVAL AND INSTALLATION

M1131007100865

REMOVAL SERVICE POINT
<<A>> FUEL DELIVERY PIPE AND FUEL
INJECTOR ASSEMBLY REMOVAL

CAUTION

Do not drop the injector.
Remove the fuel delivery pipe with the fuel injector
assembly attached to it.

Pre-removal Operation
• Fuel Line Pressure Reduction (Refer to

P.13A-386

).

• Engine Cover Removal (Refer to GROUP 11A, Camshaft

and Valve Stem Seal

P.11A-16

).

Post-installation Operation
• Engine Cover Installation (Refer to GROUP 11A,

Camshaft and Valve Stem Seal

P.11A-16

).

• Fuel Leakage Inspection.

AC301518

18

11 ± 1 N·m

N

12

6

1

2

2

2

2

3

5

7

8

9

10

11

15

16

17

14

13

5.0 ± 1.0 N·m

11 ± 1 N·m

8.9 ± 1.9 N·m

4

19

N

N

AC301518AC

Apply engine oil to all
moving parts before
installation.

Removal steps

1.

PCV hose connection

2.

Ignition coil connector

3.

Fuel injector connector

4.

EGR valve connector

5.

Rocker cover bracket installation
bolts

>>B<<

6.

Fuel high-pressure hose
connection

7.

O-ring

8.

Fuel return hose connection

9.

Emission control equipment hose
connection

10. Fuel injector hose

>>B<<

11. Fuel pressure regulator
12. O-ring

<<A>>

13. Fuel delivery pipe and fuel injector

assembly

14. Fuel injector insulator

>>B<<

15. Fuel injector assembly
16. O-ring
17 Fuel injector insulator

>>A<<

18. Fuel injectors
19. Fuel delivery pipe

Removal steps (Continued)

INJECTOR

MULTIPORT FUEL INJECTION (MPI)

13A-396

INSTALLATION SERVICE POINT
>>A<< FUEL INJECTORS INSTALLATION

CAUTION

• The fuel injectors are classified into A, B and

C by the injection quantity. When replacing
one of fuel injectors, use a same identification
mark fuel injector as the other fuel injectors.

• When replacing the fuel injectors of all

cylinders, use the same identification mark
fuel injectors.

>>B<< FUEL INJECTOR
ASSEMBLY/FUEL PRESSURE
REGULATOR/FUEL HIGH-PRESSURE
HOSE INSTALLATION

CAUTION

Do not let the engine oil get into the delivery pipe
will be damaged.
1. Apply a drop of new engine oil to the O-ring.
2. Turn the fuel injector assembly to the right and left

to install to the fuel delivery pipe. Repeat for fuel
high-pressure hose. Be careful not to damage the
O-ring. After installing, check that the item turns
smoothly.

3. If it dose not turn smoothly, the O-ring may be

trapped, remove the item, re-install it into the fuel
delivery pipe and check again.

4. Tighten the fuel pressure regulator and fuel

high-pressure hose to the specified torque.

Tightening torque:

8.9

± 1.9 N⋅m <Fuel pressure regulator>

5.0

± 1.0 N⋅m <Fuel high-pressure hose>

AC303407

AE

Identification
mark (A, B or C)

Injector

THROTTLE BODY ASSEMBLY

MULTIPORT FUEL INJECTION (MPI)

13A-397

THROTTLE BODY ASSEMBLY

REMOVAL AND INSTALLATION

M1131007700760

CAUTION

Do not loosen the fixing screws for the resin cover of throttle body assembly. If the screws are
loosened, the sensor incorporated in the resin cover becomes misaligned and the throttle body can
not work normally.

Pre-removal Operation
• Engine Cover Removal (Refer to GROUP 11A, Camshaft

and Valve Stem Seal

P.11A-16

).

• Engine Coolant Draining (Refer to GROUP 14, On-vehicle

Service

− Engine Coolant Replacement

P.14-17

).

• Air Cleaner Removal (Refer to GROUP 15, Air Cleaner

P.15-3

).

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

P.15-3

).

• Engine Coolant Supplying (Refer to GROUP 14,

On-vehicle Service

− Engine Coolant Replacement

P.14-17

).

• Engine Cover Installation (Refer to GROUP 11A,

Camshaft and Valve Stem Seal

P.11A-16

).

AC304161

4

2

AF

3

5

N

19 ± 3 N·m

1

AC304161

Removal steps

>>B<<

•

Initialization (Installation only)

1.

Electronic-controlled throttle valve
connector

2.

Water return hose connection

3.

Water feed hose connection

4.

Throttle body assembly
(Electronic-controlled throttle
valve)

>>A<<

5.

Throttle body gasket

Removal steps (Continued)

THROTTLE BODY ASSEMBLY

MULTIPORT FUEL INJECTION (MPI)

13A-398

INSTALLATION SERVICE POINT
>>A<< THROTTLE BODY GASKET
INSTALLATION

CAUTION

Poor idling etc. may result if the throttle body
gasket is installed incorrectly.

Install the throttle body gasket as its protrusion is in
the direction shown.

>>B<< LNITIALIZATION

When the throttle body is installed, removed or
replaced, initialize the electronic-controlled throttle
valve system according to the procedure below
beforehand.

Turn the ignition switch to the ON position, and
back to the "LOCK" (OFF) position. Then hold it in
this position for approximately 10 seconds or
more.

AC304212AC

Projection