Mitsubishi Eclipse 1990 Service Manual page 808

17-68
AND EMISSION CONTROL
ENGINE
EVAPORATIVE EMISSION CONTROL, SYSTEM
GENERAL INFORMATION
The evaporative emission control system prevents
fuel vapors generated in the fuel tank from escaping
into the atmosphere.
Fuel vapors from the fuel tank flow through the
fuel tank pressure control valve and vapor pipe/hose
to be stored temporarily in the
SYSTEM DIAGRAM
intake
To air
hose
COMPONENT LOCATION
Evaporative emission purge solenoid
Engine (Turbo)>
canister.
Check valve
EVAP purge
s o l e n
Revision
(Turbo) and
When driving with a low to medium load on the
engine, the fuel vapor absorbed by the EVAP
ter is drawn into the
When driving with a high load on the engine, the
purge control valve opens and the fuel vapor
sorbed by the EVAP canister is drawn into the air
intake hose.
EVAP canister
o i d
Engine control
module
I 1
Barometric pressure sensor
Intake air temperature sensor
Engine coolant temperature sensor
Volume air flow sensor
port of the throttle body.