Mitsubishi MOTORS Space Runner 1998, Руководство по ремонту

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GDI <4G6> -
Troubleshooting
13A-44
INSPECTION PROCEDURE 5
No initial combustion (starting impossible) Probable cause
This is caused by incorrect fuel supply into the combustion chamber, and improper
ignition circuit. Besides that, foreign material may be contaminated in fuel.
D Malfunction of the fuel supply system
D Malfunction of the ignition system
D Malfunction of the engine-ECU
Check system voltage while the engine is cranking.
OK:
8 V or more
NG
Check the battery. (Refer to GROUP 55 - Battery.)
OK
MUT-
II
Self-Diag code
Is a diagnosis code displayed?
Yes
Refer to P.13A-13, INSPECTION CHART FOR DIAGNOSIS
CODES.
No
MUT- II Data list
16 System voltage (Refer to P.13A-76.)
NG
Check the engine control relay and ignition switch-IG system. (Refer
to P.13A-65, INSPECTION PROCEDURE 24.)
OK
Does the camshaft rotate when the engine is cranking?
No
Check if the timing belt is broken or damaged.
Yes
MUT-
II
Actuator test
07 Fuel pump (low pressure) (Refer to P.13A-81.)
NG
Check the fuel pump (low pressure) system. (Refer to P.13A-68,
INSPECTION PROCEDURE 28.)
OK
MUT- II Data list
22 Crank angle sensor (Refer to P.13A-76.)
NG
Check the crank angle sensor system. (Refer to P.13A-19, INSPEC-
TION PROCEDURE FOR DIAGNOSIS CODE 22.)
OK
MUT-
II
Data list
21 Engine coolant temperature sensor (Refer to P.13A-76.)
NG
Check the engine coolant temperature sensor system. (Refer to
P.13A-18, INSPECTION PROCEDURE FOR DIAGNOSIS CODE
21.)
OK
MUT- II Data list
14 Throttle position sensor (2nd channel) (Refer to P.13A-76.)
NG
Check the throttle position sensor (2nd channel) system. (Refer
to P.13A-17, INSPECTION PROCEDURE FOR DIAGNOSIS
CODE 14.)
OK
Inspect engine start ability by crankingthe engine while theaccelera-
tor pedal is slightly depressed.
OK
Clean around the throttle valve. (Refer to P.13A-97.)
NG
Check fuel leakage. (Refer to P.13A-103.)
NG
Repair
OK
Measure low fuel pressure between the fuel pump (low pressure)
and fuel pump (high pressure). (Refer to P.13A-99.)
NG
Repair
OK
Measure at ignition coil connectors A-74, A-94, A-97, A-98.
D Connect the connector.
D Connect a timing light to the No.1 terminal of each connector
in turn.
(Engine cranking)
OK:
The timing light flashes.
NG
Check abnormal fuel combustion system. (Refer to P.13A-26, IN-
SPECTION PROCEDURE FOR DIAGNOSIS CODE 44.)
OK
Check ignition timing while the engine is cranking.
OK:
Approx. 5 _ BTDC
NG
Check that the crank angle sensor and timing belt cover are properly
installed.
OK
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