Mitsubishi Eclipse 1990 Service Manual page 463

INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptom
Communication with all systems is not possible.
tion with scan
tool is
Communication with PCM only is not possible.
The check engine/malfunction indicator lamp does not illuminate right after the ignition
malfunction
switch is turned to the ON position.
indicator lamp
and related
The check engine/malfunction indicator lamp remains illuminated and never goes
parts
Cranks, won't start
Starting Fires up and dies
Hard starting
Unstable idle. (Rough idle, hunting)
Idling stability
(Improper Idle speed is high. (Improper idle speed)
idling)
Idle speed is low. (Improper idle speed)
When the engine is cold, it stalls at idle (Die out)
stability
When the engine becomes hot, it stalls at idle. (Die
(Engine stalls) Th engine stalls when accelerating. (Pass out)
The engine stalls when decelerating.
Hesitation, sag or stumble
Acceleration shock
Deceleration shock
Driving
Poor acceleration
Surge
Knocking
Too high CO and HC concentration when idling
ENGINE (NON-TURBO)>
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