Mitsubishi Space Star. Manual - part 75

FUEL SUPPLY – 

Fuel Tank <F9QT>

13C-3

FUEL TANK <F9QT>

REMOVAL AND INSTALLATION

Pre-removal Operation



Draining the Fuel

Post-installation Operation



Refilling the Fuel



Checking for Fuel Leaks

3 Nm

5.0 Nm

49 Nm

8

5

3

2

6

1

1

13

12

10

11

14

1

4

15

7

7

9

16

9

49 Nm

49 Nm

30 Nm

30 Nm

30 Nm

5 Nm

5 Nm

3 Nm

3 Nm

3 Nm

Removal steps

1. Fuel hoses connection
2. Harness clamp
3. Toe control link support bar
4. Band (RH)
5. Fuel pump module connector
6. Fuel tank assembly
7. Heat protector
8. Band (LH)

9. Fuel hoses



A

 

B



10. Cap



A



11. Fuel pump module

12. Fuel filler cap
13. Fuel rubber drain
14. Filler neck assembly
15. Leveling hose
16. Filler hose

REMOVAL SERVICE POINT



A



CAP REMOVAL

MB996009

FUEL SUPPLY – 

Fuel Tank <F9QT>

13C-4

INSTALLATION SERVICE POINTS



A



FUEL PUMP MODULE INSTALLATION

1.

Check to be sure that the fuel tank packing is not damaged
or deformed, and then securely install the packing to the
fuel tank.

Caution
If the packing is installed to the fuel pump module,
packing lip will be damaged when installing the fuel
pump module to the fuel tank and the fuel leak will
result.

NOTE
If the packing is damaged or deformed, replace the
defective packing with a new packing.

2.

Apply soapy water to the inside of the packing. Align the
mating marks on the fuel tank and fuel pump module
as shown in the illustration, and then install the fuel pump
module to the fuel tank.

Caution
(1) Do not tilt the fuel pump module when installing.
(2) The packing should not be folded over as shown

by (A) in the illustration.



B



CAP INSTALLATION

Apply soapy water to the cap thread, and the use the special
tool as the same manner as for removal to tighten the cap
to the specified torque.

Tightening torque: 49 Nm

Caution
Prevent the fuel pump module from turning with the cap
when tightening the cap.

Mating range

Mating 
marks

OK

(Not good)

Packing

MB996009

13D-1

DIESEL FUEL

CONTENTS

GENERAL

2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Outline of Change

2

. . . . . . . . . . . . . . . . . . . . . . . . . 

GENERAL INFORMATION

2

. . . . . . . . . . . . . . . . 

SERVICE SPECIFICATIONS

4

. . . . . . . . . . . . . . 

SPECIAL TOOLS

4

. . . . . . . . . . . . . . . . . . . . . . . . 

TROUBLESHOOTING

5

. . . . . . . . . . . . . . . . . . . . 

ON-VEHICLE SERVICE

51

. . . . . . . . . . . . . . . . . 

Component Location

51

. . . . . . . . . . . . . . . . . . . . . 

Main Relay Continuity Check

52

. . . . . . . . . . . . . 

Intake Air Temperature Sensor Check

52

. . . . . 

Engine Coolant Temperature Sensor 
Check

52

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Accelerator Pedal Position Sensor 
(1st channel) Check

52

. . . . . . . . . . . . . . . . . . . . . . 

Accelerator Pedal Position Sensor 
(2nd channel) Check

53

. . . . . . . . . . . . . . . . . . . . . 

Injector Check

53

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Fuel Temperature Sensor Check

53

. . . . . . . . . . 

Fuel Pressure Regulator Check

54

. . . . . . . . . . . 

Crank Angle Sensor Check

54

. . . . . . . . . . . . . . . 

Throttle Valve Control Solenoid Check

54

. . . . . 

Throttle Actuator Check

54

. . . . . . . . . . . . . . . . . . . 

FUEL HIGH PRESSURE PUMP
AND FUEL INJECTOR

55

. . . . . . . . . . . . . . . . . . 

DIESEL FUEL – 

General/General Information

13D-2

GENERAL

OUTLINE OF CHANGE

The following maintenance service points have been established to correspond to the adoption of the
F9Q1 engine.

GENERAL INFORMATION

The common rail fuel injection system consists of
sensors which detect the condition of the diesel
engine, an engine-ECU which controls the system
based on signals from these sensors, and actuators
which operate according to control commands from
the engine-ECU. The engine-ECU carries out

activities such as fuel injection control and idle speed
control. In addition, the engine-ECU is equipped with
several self-diagnosis functions which make trouble-
shooting easier in the event that a problem develops.

FUEL INJECTION CONTROL

The injector drive time and the timing are controlled
so that the appropriate quantities of fuel are supplied
to the engine in response to engine conditions which
can change frequently. A single injector is mounted
at each cylinder. The fuel is sent from the fuel tank by

the electronic fuel pump to the high pressure pump.
The high pressure pump increases the fuel pressure
to the pressure which is required for high-pressure
injection, and then send the fuel to each injector.

SELF-DIAGNOSIS FUNCTION



When an abnormality is detected in any of the
sensors or actuators, the engine warning lamp
illuminates to warn the driver.



When an abnormality is detected in any of the
sensors or actuators, a diagnosis code number
corresponding to the problem which occurred
is output.



The RAM data relating to the sensors and
actuators which is stored in the engine-ECU
can be read using the MUT-

II

. In addition, the

actuators can be force-driven under certain
conditions.

OTHER CONTROL FUNCTIONS

1.

A/C Relay Control
Turn the compressor clutch of the A/C ON and
OFF.

2.

Glow Control
Refer to GROUP 16.

3.

Fan Control
The revolutions of the radiator fan and
condenser fan are controlled in response to
the engine coolant temperature and vehicle
speed.

4.

EGR Control
Refer to GROUP 17.

5.

Throttle Valve Control
The throttle valve control solenoid controls
vacuum pressure to the throttle actuator to open
and close the throttle valve.

6.

Boost Pressure Control
Turbocharger waste gate solenoid controls
vacuum pressure to the waste gate actuator
to control boost pressure.

7.

Additional Heater Control
Refer to GROUP 55.