Mitsubishi Lancer Evolution X. Manual - part 458

SPECIAL TOOLS

TSB Revision

FUEL SUPPLY

13B-5

SPECIAL TOOLS

M1135000601176

Tool

Tool number and name

Supersession

Application

MB991958
Scan tool (M.U.T.-III sub 
assembly)

a: MB991824

Vehicle communication 
interface (V.C.I.)

b: MB991827

M.U.T.-III USB cable

c: MB991910

M.U.T.-III main harness 
A (Vehicles with CAN 
communication 
system)

d: MB991911

M.U.T.-III main harness 
B (Vehicles without 
CAN communication 
system)

e: MB991914

M.U.T.-III main harness 
C (for Chrysler models 
only)

f: MB991825

M.U.T.-III adapter 
harness

g: MB991826

M.U.T.-III trigger 
harness

MB991824-KIT
NOTE: MB991826 
M.U.T.-III Trigger 
Harness is not 
necessary when 
pushing V.C.I. ENTER 
key.

CAUTION

For vehicles with CAN 
communication, use 
M.U.T.-III main harness A 
to send simulated vehicle 
speed. If you connect 
M.U.T.-III main harness B 
instead, the CAN 
communication does not 
function correctly.
Checking diagnostic trouble 
code

MB991658
Test harness set

Tool not available

Fuel tank differential 
pressure sensor check

MB991910

MB991826

MB991958

MB991911

MB991914

MB991824

MB991827

MB991825

DO NOT USE

a

b

c

d

e

f

g

DO NOT USE

MB991658

ON-VEHICLE SERVICE

TSB Revision

FUEL SUPPLY

13B-6

ON-VEHICLE SERVICE

FUEL PUMP OPERATION CHECK

M1135001000635

Refer to GROUP 13A, On-vehicle Service − Fuel Pump Opera-

tion Check 

P.13A-869

.

FUEL LEVEL SENSOR (SUB) CHECK

M1135005300133

Refer to GROUP 54A, Combination Meter − On-vehicle Service, 

Fuel Level Sensor (sub) Check 

P.54A-99

.

FUEL PUMP MODULE REPLACEMENT

M1135004901748

1. Remove the rear seat cushion assembly. (Refer to GROUP 

52A, Rear Seat Assembly 

P.52A-27

).

2. Remove the floor inspection lid (LH).

3. Disconnect the fuel pump module connector and fuel tank 

differential pressure sensor connector.

4. Release the fuel pressure in the fuel line. (Refer to GROUP 

13A, On-vehicle Service − How to Reduce Pressurized Fuel 

Lines 

P.13A-868

).

5. Disconnect the fuel return hose.

6. Insert a flat-tip screwdriver [6mm (0.24 inch) wide and 1mm 

(0.04 inch) thick] into the retainer of the fuel main pipe.

AC703013

AE

Floor inspection lid (LH)

AC709179AC

Fuel main pipe

Fuel tank differential
pressure sensor connector

Fuel tank
pump module
connector

Fuel return hose

AC606017

Fuel pump module

Retainer

Flat-tip
screwdriver

Fuel main pipe

AC

ON-VEHICLE SERVICE

TSB Revision

FUEL SUPPLY

13B-7

7. Turn the flat-tip screwdriver about 90 degrees angle to push 

up the retainer, and disconnect the fuel main pipe from the 
fuel pump module.

8. Remove the mounting nuts of fuel pump module.

CAUTION

When removing the fuel pump module from the service 
hole, be careful not to damage the gauge unit and the float 
of the fuel pump module.
9. Disconnect the fuel tank suction hose while removing the 

fuel pump module from the service hole, and then remove 
the fuel pump module from the service hole.

10.Replace the fuel pump module gasket with a new one.

AC606018

Fuel pump module

Retainer

Flat-tip screwdriver

Fuel main pipe

AC

AC709180AB

Fuel pump module

AC703018

AC

Fuel pump module

Fuel tank
suction hose

ON-VEHICLE SERVICE

TSB Revision

FUEL SUPPLY

13B-8

CAUTION

• When installing the fuel pump module into the fuel tank 

from the service hole, be careful not to damage the 
gauge unit and the float of the fuel pump module. In 
addition, be careful that the float does not catch the 
fuel tank suction hose in the fuel tank.

• When installing the fuel pump module into the fuel tank 

from the service hole, check that the moving part of the 
gauge works smoothly.

11.While inserting the fuel pump module into the fuel tank from 

the service hole, connect the fuel tank suction hose, and 
install the fuel pump module to the fuel tank.

12.Before the installation, push up the retainer of the fuel main 

pipe.

13.Connect the connector of fuel main pipe to the fuel pump 

module securely and push down the retainer of the 
connector to lock it firmly.

14.After the installation, slightly pull the fuel main pipe to check 

that it is connected securely. At this time, also check that 
there is approximately 1 mm (0.04 inch) play.

15.Connect the fuel return hose.

16.Connect the fuel pump module connector and fuel tank 

differential pressure sensor connector.

17.Install the floor inspection lid (LH).
18.Install the rear seat cushion assembly. (Refer to GROUP 

52A, Rear Seat Assembly 

P.52A-27

).

AC703018

AC

Fuel pump module

Fuel tank
suction hose

AC606019

Retainer

Fuel main pipe

AC

AC606020

Retainer

Fuel main pipe

Fuel pump module

AC

AC709179AC

Fuel main pipe

Fuel tank differential
pressure sensor connector

Fuel tank
pump module
connector

Fuel return hose