Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 405

13A-46
INSPECTION PROCEDURE 6
Initial combustion takes place, but does not complete
(start impossible), too long time to start (poor start)
This may be caused by improper spark plug ignition (poor spark), improper mixture
during engine cranking, improper fuel pressure.
Check system voltage while the engine is cranking.
OK: 8 V or more
MUT-II Self-Diag code
Is a diagnosis code displayed?
MUT-II Actuator test
07 Fuel pump (low pressure) (Refer to P.13A-80.)
MUT-II Data list
21 Engine coolant temperature sensor (Refer to P.13A-76.)
MUT-II Data list
18 Cranking signal (Refer to P.13A-76.)
MUT-II Data list
74 Fuel pressure sensor (Refer to P.13A-78.)
Check fuel leakage. (Refer to P.13A-102.)
Is the engine started normally when it is cranked with the accelerator
pedal depressed slightly?
MUT-II Data list
14 Throttle position sensor (2nd channel) (Refer to P.13A-75.)
Check ignition timing when the engine is cranked.
OK: approx. 5_ BTDC
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GDI –
OK
No
OK
OK
OK
OK
OK
No
OK
OK
Troubleshooting
Probable cause
Malfunction of the fuel supply system
Malfunction of the fuel pressure sensor
Malfunction of the ignition system
Malfunction of the electronic-controlled throttle vale
system
Malfunction of the engine-ECU
NG
Check the battery. (Refer to GROUP 55 – Battery.)
Yes
Refer to P.13A-13, INSPECTION CHART FOR DIAGNOSIS
CODES.
NG
Check the fuel pump (low pressure) system. (Refer to P.13A-68,
INSPECTION PROCEDURE 29.)
NG
Check the engine coolant temperature system. (Refer to P.13A-
18, INSPECTION PROCEDURE FOR DIAGNOSIS CODE 21.)
NG
Check the ignition switch-ST system. (Refer to P.13A-66, INSPEC-
TION PROCEDURE 27.)
NG
Check an abnormal fuel pressure system. (Refer to P.13A-28, IN-
SPECTION PROCEDURE FOR DIAGNOSIS CODE 56.)
NG
Repair
Yes
Clean around the throttle valve. (Refer to P.13A-96.)
NG
Check the throttle position sensor (2nd channel) system. (Refer
to P.13A-17, INSPECTION PROCEDURE FOR DIAGNOSIS
CODE 14.)
NG
Check that the crank angle sensor and timing belt cover are properly
installed.