Mitsubishi Eclipse 1990 Service Manual page 475

INSPECTION PROCEDURE 18
Poor acceleration
[Comment]
Defective ignition system, abnormal air-fuel ratio, poor compression pressure, etc. are suspected.
SCAN TOOL DTC
Are diagnostic trouble codes output
NO
Scan tool: inspection when hesitation, sag, stumble or poor
OK
Check the following items.
Check the ignition coil, spark plugs, spark plug cables.
Check the compression pressure.
Check the fuel filter or fuel line for clogging.
Clogged air cleaner
Clogged exhaust system
INSPECTION PROCEDURE 19
Surge
[Comment]
Defective ignition system, abnormal air-fuel
SCAN TOOL DTC
Are diagnostic trouble codes output
NO
Check the injectors for op
(Refer to
OK
Scan Tool: Inspection when surge occurs.
(Refer to INSPECTION PROCEDURE 35.)
OK
Check the fuel pressure. (Refer to
OK
Check the following items.
Check the ignition coil, spark plugs, spark plug cables.
Check the EGR system.
E N G I N E ( N O N - T U R B O ) >
YES
Refer to
TROUBLE CODES.
NG
Check the injector
FOR DIAGNOSTIC TROUBLE CODES".
are suspected.
YES
Refer to
TROUBLE CODES.
NG
Check the injector control circuit. Carry out procedures
FOR DIAGNOSTIC TROUBLE CODES".
I
TSB Revision
Probable cause
Malfunction of the ignition system
Malfunction of air-fuel
ratio
of the fuel supply
Poor acceleration
Clogged exhaust system
INSPECTION CHART
Carry out procedures 19, 20,
in "INSPECTION PROCEDURE
Probable cause
Malfunction of the ignition system
Malfunction of air-fuel ratio control system
Malfunction of the EGR solenoid system
INSPECTION CHART FOR DIAGNOSTIC
in "INSPECTION PROCEDURE
,
. .
21,