Mitsubishi Galant 9G. Manual - part 920

ON-VEHICLE SERVICE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-1122

AK303957AB

CYLINDER 2, 3
HEATED OXYGEN
SENSOR (REAR)

CYLINDER 2, 3 HEATED OXYGEN
SENSOR (REAR) CONNECTOR

L

AK303958AB

KNOCK SENSOR

INTAKE 
MANIFOLD

INTAKE 
MANIFOLD

M

KNOCK 
SENSOR
CONNECTOR

AK303959AB

N

INJECTOR

AK303960AB

CAMSHAFT
POSITION
SENSOR

O

AK303961AB

POWERTRAIN
CONTROL MODULE

P

AIR
CLEANER

AK302202AC

Q

MULFUNCTION INDICATOR LAMP
(SERVICE ENGINE SOON OR
CHECK ENGINE LAMP)

ON-VEHICLE SERVICE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-1123

AK303962AB

FUEL PUMP
RELAY (1)

FUEL PUMP
RELAY (2)

R

AK303964AB

DATA LINK
CONNECTOR

ACCELERATOR 
PEDAL

T

AB

DATA LINK
CONNECTOR

T

AK303963AB

S

ACCELERATOR
PEDAL POSITION
SENSOR

ACCELERATOR
PEDAL

AK303965AB

U

FUEL TANK
DIFFERENTIAL
PRESSURE
SENSOR

FUEL LEVEL
SENSOR (SUB)

SERVICE
HOLE

AK303966AB

FUEL PUMP MODULE
(INCORPORATING FUEL LEVEL
SENSOR (MAIN) AND FUEL
TANK TEMPERATURE SENSOR)

V

SERVICE HOLE

AK303868AC

EVAPORATIVE EMISSION
VENTILATION SOLENOID

W

EVAPORATIVE
EMISSION CANISTER

ON-VEHICLE SERVICE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-1124

THROTTLE BODY (THROTTLE VALVE AREA) 
CLEANING

M1131001000547

WARNING

If the throttle valve is operated in service, a finger 
might be injured as the result of being caught by the 
throttle valve. Make sure that the ignition switch is 
surely in "LOCK" (OFF) position before the service in 
order that the throttle valve cannot be operated.

1. Remove the throttle body.

CAUTION

• Do not spray the cleaning solvent directly to the throttle 

valve.

• Make sure the cleaning solvent does not enter the 

motor and the sensor through the shaft.

2. Spray cleaning solvent on a clean cloth.
3. Wipe off the dirt around the throttle valve with the cloth 

sprayed with cleaning solvent.

4. Attach the air intake hose.

FUEL PRESSURE TEST

M1131001900625

Required Special Tools:

• MB991958: Scan tool (MUT-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

• MB991637: Fuel Pressure Gauge Set

• MD998709: Adaptor Hose

• MD998742: Hose Adaptor

1. Release residual pressure from the fuel line to prevent fuel 

spray. (Refer to 

P.13A-1127

.)

WARNING

To prevent a fire, cover the hose connection with 
shop towels to prevent splashing of fuel that could be 
caused by some residual pressure in the fuel pipe 
line.

2. Disconnect the fuel high-pressure hose at the fuel rail side.
3. Assemble the fuel pressure measurement tools as follows.

AK302093AB

FUEL HIGH-PRESSURE HOSE

ON-VEHICLE SERVICE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-1125

<When using the fuel pressure gauge>

1. Remove the union joint and bolt from special tool 

MD998709 (adapter hose) and instead attach special tool 
MD998742 (hose adapter) to the adapter hose.

2. Place a suitable O-ring or gasket on the assembled special 

tools MD998709 and MD998742 and install the fuel pres-
sure gauge.

3. Install the assembled fuel pressure measurement tools 

between the fuel rail and fuel high-pressure hose.

<When using special tool MB991637 (fuel pressure gauge 

set)>

1. Remove the union joint and bolt from special tool 

MD998709 (adapter hose) and instead attach special tool 
MD998742 (hose adapter) to the adapter hose.

2. Install special tool MB991637 (fuel pressure gauge set) into 

assembled special tools MD998709 and MD998742 via a 
gasket.

3. Install the assembled fuel pressure measurement tools 

between the fuel rail and fuel high-pressure hose.

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.
4. Connect scan tool MB991958 to the data link connector.
5. Use Actuator test 07 to drive the fuel pump. Check that there 

is no fuel leaking from any section when the fuel pump is 
operating.

6. Stop the fuel pump.
7. Start the engine and run at idle.
8. Measure fuel pressure while the engine is running at idle.

Standard value: Approximately 324 kPa (95.7 in.Hg) at 
curb idle

9. Check to see that fuel pressure at idle does not drop even 

after the engine has been revved several times.

10.If any of fuel pressure measured in steps 8 to 9 is out of 

specification, troubleshoot and repair according to the table 
below.

AKX01457AH

FUEL PRESSURE 
GAUGE

O-RING OR GASKET

MD998709

MD998742

FUEL 
RAIL 

FUEL
HIGH-PRESSURE
HOSE

AKX01458

MB991637

O-RING OR GASKET

MD998709

MD998742

FUEL
RAIL

AI

FUEL
HIGH-PRESSURE
HOSE

AK303804AB

MB991910

DATA LINK
CONNECTOR

MB991824

MB991827