Mitsubishi Eclipse 1990 Service Manual page 460

Scan tool 160
Code General scan tool EVAP Leak Monitor
No.
31
[Comment]
Background
The PCM monitors that the fuel tank, purge lines, etc. are
ventilation solenoid with the canister ventilation valve (incorporated in the
If the fuel tank and purge lines are sealed
the solenoid specific times
After the pressure rises well, the diaphragm inside the solenoid will not work any more.
If the purge air leaks slightly, the solenoid will be activated more than specific times.
Range of Check, Set Condition
The solenoid has been activated more than specific times.
Check the evaporative
(Refer to GROUP
Check the evaporative emission purge solenoid.
(Refer to GROUP 17 Emission Control System.)
Check the fuel tank and purge line for leakage.
Scan tool 161
Code General scan tool EVAP Leak Monitor Large Leak
No.
[Comment]
The PCM monitors that the fuel tank, purge lines, etc. are
ventilation with the canister ventilation valve (incorporated in the solenoid)
If the fuel tank and purge lines are sealed correctly, the pressure will
the solenoid specific times.
After the pressure rises well, the diaphragm inside the solenoid will not work any more.
If the purge air leaks excessively, the solenoid should be activated much more than specific
times.
of Check. Set Condition
been activated much more than specific times.
Check the evaporative emission ventilation solenoid.
(Refer to GROUP 17
Check the evaporative emission purge solenoid.
(Refer to GROUP 17 Emission Control System.)
Check the fuel tank and
ENGINE (NON-TURBO)>
Detected
the pressure will rise well by
Emission Control System.)
OK
OK
Detected
Emission Control System.)
OK
line for
I
TSB Revision
' P r o b a b l e
well.
NG
Replace
NG
Replace
Probable
well.
well by
Replace
NG
Replace
Fuel tank cap screwed on
tank and purge lines,
Evaporative emission
failed
PCM failed'
cause
Fuel tank filler cap screwed on
Fuel tank and purge
Evaporative
failed
PCM
I,
seated
solenoid
,