Mitsubishi Space Star. Manual - part 81

DIESEL FUEL – 

Troubleshooting

13D-23

Code No. 27 Turbocharger waste gate solenoid system

Probable cause



Malfunction of the turbocharger waste gate
solenoid



Improper connector contact, open circuit or
short-circuited harness wire of the turbocharger
waste gate solenoid circuit



Malfunction of the engine-ECU

NG

NG

OK

Measure at the turbocharger waste gate solenoid connector A-108.



Disconnect the connector and measure at the harness
side.



Voltage between 1 and earth (Ignition switch: ON)
OK: System voltage

NG

Check the following connectors: A-108, A-121

OK

Check the turbocharger waste gate solenoid
(Refer to GROUP 15 – On-vehicle service.)

Replace the engine-ECU.

OK

INTERMITTENT MALFUNCTIONS
Refer to GROUP 00 – Points to Note for Intermittent
Malfunctions*

MUT-

II

 Actuator test

05 Turbocharger waste gate solenoid (Refer to P.13D-50.)

Check the harness wire between the turbocharger waste gate
solenoid and the main relay, and repair if necessary.

Check trouble symptom.

NG

Repair

NG

OK

Replace

Check the harness wire between the turbocharger waste gate
solenoid and the engine-ECU.

OK

Repair

NG

*:

Refer to ’99 SPACE STAR Workshop Manual (Pub. No. CMXE99E1)

DIESEL FUEL – 

Troubleshooting

13D-24

Code No. 28 Fuel pressure regulator system

Probable cause



Malfunction of the fuel pressure regulator



Improper connector contact, open circuit or
short-circuited harness wire of the fuel pressure
regulator circuit



Malfunction of the engine-ECU

NG

NG

OK

Measure at the fuel pressure regulator connector A-118.



Disconnect the connector and measure at the harness
side.



Voltage between 2 and earth (Ignition switch: ON)
OK: System voltage

NG

Check the following connectors: A-118, A-121

OK

Check the fuel pressure regulator (Refer to P.13D-54.)

Replace the engine-ECU.

OK

INTERMITTENT MALFUNCTIONS
Refer to GROUP 00 – Points to Note for Intermittent
Malfunctions*

MUT-

II

 Actuator test

07 Fuel pressure regulator (Refer to P.13D-50.)

Check the harness wire between the fuel pressure regulator
and the main relay, and repair if necessary.

Check trouble symptom.

NG

Repair

NG

OK

Replace

Check the harness wire between the fuel pressure regulator
and the engine-ECU.

OK

Repair

NG

*:

Refer to ’99 SPACE STAR Workshop Manual (Pub. No. CMXE99E1)

DIESEL FUEL – 

Troubleshooting

13D-25

Code No. 29 No.1 injector system

Probable cause



Malfunction of the No.1 injector



Improper connector contact, open circuit or
short-circuited harness wire of the No.1 injector
circuit



Malfunction of the engine-ECU

OK

NG

Check the following connectors: A-48, A-120

OK

INTERMITTENT MALFUNCTIONS
Refer to GROUP 00 – Points to Note for Intermittent
Malfunctions*

MUT-

II

 Actuator test

01 No.1 injector (Refer to P.13D-50.)

Check trouble symptom.

Check the harness wire between the No.1 injector and the
engine-ECU.

OK

Repair

NG

Repair

NG

Replace the engine-ECU.

NG

OK

Check the No.1 injector (Refer to P.13D-53.)

Replace

NG

*:

Refer to ’99 SPACE STAR Workshop Manual (Pub. No. CMXE99E1)

Code No. 31 No.2 injector system

Probable cause



Malfunction of the No.2 injector



lmproper connector contact, open circuit or
short-circuited harness wire of the No.2 injector
circuit



Malfunction of the engine-ECU

OK

NG

Check the following connectors: A-49, A-120

OK

INTERMITTENT MALFUNCTIONS
Refer to GROUP 00 – Points to Note for Intermittent
Malfunctions*

MUT-

II

 Actuator test

02 No.2 injector  (Refer to P.13D-50.)

Check trouble symptom.

Check the harness wire between the No.2 injector and the
engine-ECU.

OK

Repair

NG

Repair

NG

Replace the engine-ECU.

NG

OK

Check the No.2 injector (Refer to P.13D-53.)

Replace

NG

*:

Refer to ’99 SPACE STAR Workshop Manual (Pub. No. CMXE99E1)

DIESEL FUEL – 

Troubleshooting

DIESEL FUEL – 

Troubleshooting

13D-26

Code No. 32 No.3 injector system

Probable cause



Malfunction of the No.3 injector



Improper connector contact, open circuit or
short-circuited harness wire of the No.3 injector
circuit



Malfunction of the engine-ECU

OK

NG

Check the following connectors: A-54, A-120

OK

INTERMITTENT MALFUNCTIONS
Refer to GROUP 00 – Points to Note for Intermittent
Malfunctions*

MUT-

II

 Actuator test

03 No.3 injector (Refer to P.13D-50.)

Check trouble symptom.

Check the harness wire between the No.3 injector and the
engine-ECU.

OK

Repair

NG

Repair

NG

Replace the engine-ECU.

NG

OK

Check the No.3 injector (Refer to P.13D-53.)

Replace

NG

*:

Refer to ’99 SPACE STAR Workshop Manual (Pub. No. CMXE99E1)

Code No. 33 No.4 injector system

Probable cause



Malfunction of the No.4 injector



Improper connector contact, open circuit or
short-circuited harness wire of the No.4 injector
circuit



Malfunction of the engine-ECU

OK

NG

Check the following connectors: A-60, A-120

OK

INTERMITTENT MALFUNCTIONS
Refer to GROUP 00 – Points to Note for Intermittent
Malfunctions*

MUT-

II

 Actuator test

04 No.4 injector (Refer to P.13D-50.)

Check trouble symptom.

Check the harness wire between the No.4 injector and the
engine-ECU.

OK

Repair

NG

Repair

NG

Replace the engine-ECU.

NG

OK

Check the No.4 injector (Refer to P.13D-53.)

Replace

NG

*:

Refer to ’99 SPACE STAR Workshop Manual (Pub. No. CMXE99E1)