Mitsubishi Eclipse. Manual - part 645

 

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Mitsubishi Eclipse. Manual - part 645

 

 

GENERAL DESCRIPTION

TSB Revision

FUEL SUPPLY

13C-2

GENERAL DESCRIPTION

M1135000100361

• The fuel tank is located under the floor of the rear 

seats to provide increased safety and a wider lug-
gage space.

• A plastic fuel tank has been adopted to reduce 

weight, and improve anti-corrosion effectiveness.

• A fuel pump module, which unifies fuel pump, fuel 

filter, reservoir cup and fuel level sensor, has 
been adopted to lighten weight and improve ser-
viceability.

AC004652 AC

<4G6>

FUEL PRESSURE
REGULATOR

FUEL INJECTOR

FUEL PUMP MODULE

FUEL TANK

EVAPORATIVE EMISSION
CANISTER

AC004653 AC

<6G7>

FUEL PRESSURE
REGULATOR

FUEL INJECTOR

FUEL PUMP MODULE

FUEL TANK

EVAPORATIVE EMISSION
CANISTER

FUEL SUPPLY DIAGNOSIS

TSB Revision

FUEL SUPPLY

13C-3

FUEL SUPPLY DIAGNOSIS

INTRODUCTION TO FUEL SUPPLY DIAGNOSIS

M1135004000355

The fuel supply device is used to supply an appropri-
ate mixture to the engine. The device is configured of 
the fuel tank, fuel filter, fuel pump and the fuel pipe 
that couples each part. An evaporative emission sys-
tem is also provided to prevent pollution from the 
evaporated fuel.

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

TROUBLESHOOTING STRATEGY

M1135004100244

Use these steps to plan your diagnostic strategy. If 
you follow them carefully, you will be sure that you 
have exhausted most of the possible ways to find a 
fuel supply fault.
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

M1135004200263

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, kinked or clogged fuel pipe or hose.

• Malfunction of fuel pump module.

DIAGNOSIS

Required Special Tools:

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

• MB991824: Vehicle Communication Interface

• MB991827: MUT-III USB Cable

• MB991911: MUT-III Main Harness B

• MB991637: Fuel Pressure Gauge Set

• MD998709: Adaptor Hose

• MD998742: Hose Adaptor

SYMPTOM

INSPECTION PROCEDURE

REFERENCE PAGE

Engine malfunctions due to insufficient fuel supply 1

P.13C-3

 

FUEL SUPPLY DIAGNOSIS

TSB Revision

FUEL SUPPLY

13C-4

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) When scan tool MB991958 is used, connect it as described 

below.
a. Start up the personal computer.
b. Connect special tool MB991827 to special tool 

MB991824 and the personal computer.

c. Connect special tool MB991911 to special tool 

MB991824.

d. Connect special tool MB991911 to the data link 

connector.

e. 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 illumi-
nated in a green color.

f. Start the MUT-III system on the personal computer.

(3) Turn the ignition switch to the "ON" position.
(4) Check for MFI system diagnostic trouble code. (Refer to 

GROUP 13A, Diagnostic Trouble Code Chart 

P.13A-5

).

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is any DTC set?

YES : Remove scan tool MB991958 in a reverse of the 

installation procedure. Refer to GROUP 13A, 
Diagnostic Trouble Code Chart 

P.13A-5

.

NO :  Go to Step 2.

AC303127

AB

MB991911

16-PIN

MB991827

MB991824 

 

 

 

 

 

 

 

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