Mitsubishi Galant 9G. Manual — part 1393

SPECIFICATIONS

TSB Revision

ENGINE LUBRICATION

12-8

ENGINE OIL

CAUTION

Never use nondetergent or straight mineral oil.
Use only engine oils displaying the ILSAC certification mark
("Starburst" symbol) on the container.

If these oils are not available, an API classification SL or SL/CF
can be used.

ACX00394AI

ILSAC CERTIFICATION MARK
("STARBURST" SYMBOL)

A

P

I

SE

RVICE S

L/C

F

SAE

5W-20

AC401876

API SERVICE SYMBOL

AB

13C-1

GROUP 13C

FUEL SUPPLY

CONTENTS

GENERAL DESCRIPTION. . . . . . . . .

13C-2

FUEL SUPPLY DIAGNOSIS . . . . . . .

13C-2

INTRODUCTION. . . . . . . . . . . . . . . . . . . . .

13C-2

TROUBLESHOOTING STRATEGY . . . . . .

13C-2

SYMPTOM CHART. . . . . . . . . . . . . . . . . . .

13C-2

SYMPTOM PROCEDURES . . . . . . . . . . . .

13C-3

SPECIAL TOOLS. . . . . . . . . . . . . . . .

13C-5

ON-VEHICLE SERVICE. . . . . . . . . . .

13C-6

FUEL LEVEL SENSOR CHECK. . . . . . . . .

13C-6

FUEL LEVEL SENSOR REPLACEMENT . .

13C-6

FUEL PUMP OPERATION CHECK . . . . . .

13C-7

FUEL PUMP MODULE REPLACEMENT . .

13C-7

LEVELING VALVE CHECK . . . . . . . . . . . . .

13C-9

FUEL TANK . . . . . . . . . . . . . . . . . . . .

13C-10

REMOVAL AND INSTALLATION . . . . . . . .

13C-10

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

13C-16

SPECIFICATIONS . . . . . . . . . . . . . . .

13C-17

FASTENER TIGHTENING
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . .

13C-17

SERVICE SPECIFICATION . . . . . . . . . . . .

13C-17

GENERAL DESCRIPTION

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FUEL SUPPLY

13C-2

GENERAL DESCRIPTION

M1135000100435

• The fuel tank is located under the floor below the

rear seats.

• A fuel cut-off valve is utilized to prevent fuel from

leaking out in the event of a collision.

• A fuel pump module, including fuel pump, fuel fil-

ter, reservoir and fuel level sensor, is used to
lighten weight and improve serviceability.

CONSTRUCTION DIAGRAM

FUEL SUPPLY DIAGNOSIS

INTRODUCTION

M1135004000388

The fuel system is used to supply an appropriate fuel
mixture to the engine. The system consists of the
fuel tank, fuel filter, fuel pump and fuel pipes. An
evaporative emission system is provided to prevent
evaporated fuel from escaping into the atmosphere.

Engine malfunctions caused by insufficient fuel sup-
ply and evaporative emission system operation mal-
functions can be caused by faults in the vapor line,
fuel pipe, hose, or fuel tank pressure control valve,
etc.

TROUBLESHOOTING STRATEGY

M1135004100277

Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will be sure to find
most of the fuel supply faults.
1. Gather information from the customer.

2. Verify that the condition described by the

customer exists.

3. Find the malfunction by following the Symptom

Chart.

4. Verify malfunction is eliminated.

SYMPTOM CHART

M1135004200382

AC305896

FUEL INJECTOR

FUEL RAIL

FUEL PIPE

FUEL PUMP MODULE

FUEL LEVEL SENSOR (SUB)

FUEL TANK LEVELING VALVE

EVAPORATIVE
EMISSION
CANISTER

FUEL TANK DIFFERENTIAL
PRESSURE SENSOR

AB

FUEL TANK

SYMPTOM

INSPECTION PROCEDURE

REFERENCE PAGE

Engine Malfunctions Due to Insufficient Fuel Supply 1

P.13C-3

FUEL SUPPLY DIAGNOSIS

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FUEL SUPPLY

13C-3

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1 : Engine Malfunctions Due to Insufficient Fuel Supply

TROUBLESHOOTING HINTS (The most likely
causes for this case: )

• Injector failed.

• Open or shorted injector circuit, or loose connector.

• Bent, twisted or clogged fuel pipe or hose.

• Malfunction of the fuel pump module.

DIAGNOSIS

Required Special Tools:

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

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

STEP 1. Using scan tool MB991958, read the diagnostic
trouble code (DTC).

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) Ensure that the ignition switch is at the "LOCK" (OFF)

position.

(2) Start up the personal computer.
(3) Connect special tool MB991827 to special tool MB991824

and the personal computer.

(4) Connect special tool MB991910 to special tool MB991824.
(5) Connect special tool MB991910 to the data link connector.
(6) Turn the power switch of special tool MB991824 to the "ON"

position.
NOTE: When special tool MB991824 is energized, special
tool MB991824 indicator light will be illuminated in a green
color.

(7) Start the MUT-III system on the personal computer.
(8) Turn the ignition switch to the "ON" position.
(9) Select "Interactive Diagnosis" from the start-up screen.
(10)Select "System select."
(11)Choose "MFI" from the "POWER TRAIN" tab.
(12)Select "MITSUBISHI."
(13)Select "Diagnostic Trouble Code."
(14)If a DTC is set, it is shown.
Q: Is the DTC set?

YES : Refer to Diagnostic Trouble Code Chart. <2.4L

Engine>

P.13A-33

, <3.8L Engine>

P.13B-34

.

NO : Turn the ignition switch to the "LOCK" (OFF) position,

and then remove scan tool MB991958 in the reverse
order of installation. Go to Step 2.

AC305412

AB

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827