Mitsubishi Eclipse 1990 Service Manual page 467

INSPECTION PROCEDURE 4
The check engine/malfunction indicator lamp remains
illuminated and never goes out.
[Comment]
In cases such as the above, the cause is probably that the PCM is
detecting a problem in a sensor or actuator, or that one of the malfunctions listed at right has
occurred.
SCAN TOOL DTC
Are diagnostic trouble codes output?
Measure at the combination meter connector
Disconnect the connector, and measure at the harness
side.
Disconnect the PCM connector.
Continuity between 51 and ground
OK: No continuity
O
Replace the PCM.
INSPECTION PROCEDURE 5
Cranks, won't start
[Comment]
In cases such as the above, the cause is probably that a spark plugs are fouled defective,
or that the supply of fuel to the combustion chamber is defective.
in addition, foreign materials (water, kerosene, etc.) may be mixed with the fuel.
Check battery positiv
OK: 8 or hiaher
OK
Scan tool: Inspection when no initial combustion occurs.
(Refer to INSPECTION PROCEDURE 29.)
OK
Can any sound be heard
(Refer to
Yes
Check ignition circuit system.
(Refer to INSPECTION PROCEDURE 28.)
OK
Check the following items.
Check the ignition coil, spark plugs, spark plug cables.
Clean the injectors.
Check if foreign materials (water, alcohol, etc.) got into fuel.
Check the compression pressure.
ENGINE
K
TSB Revision
Troubleshooting
Probable cause
Short-circuit between the check
Malfunction of the PCM
Refer to INSPECTION CHART FOR DIAGNOSTIC
TROUBLE CODES
Check the harness wire between
connector. Repair, if necessary.
Probable cause
Malfunction of the ignition system
Malfunction of the fuel pump system
Malfunction of the injector system
Malfunction of the PCM
Foreign materials in fuel
Check the battery. (Refer to GROUP 54
.
Check the injector control circuit. Carry out procedures 19, 20, 21,
FOR DIAGNOSTIC TROUBLE CODES".
indicator lamp and
meter and PCM
,
Battery)
in "INSPECTION PROCEDURE
,