GENERAL INFORMATION (EVAPORATIVE EMISSION CONTROL
SYSTEM)
The evaporative
emission control system prevents fuel vapours generated in the fuel tank
from escaping into the atmosphere.
Fuel vapours from the fuel tank
flow through the vapour pipe/hose to be stored temporarily in the
canister.
When driving the vehicle, fuel vapours stored in the
canister flow through the purge control solenoid valve and purge port
and go into the inlet manifold to be sent to the combustion
chamber.
When the engine coolant temperature is low or when the
intake air quantity is small (when the engine is at idle, for example),
the engine control unit turns the purge solenoid off to shut off the
fuel vapour flow to the inlet manifold.
This does not only insure the
driveability when the engine is cold or running under low load but also
stabilize the emission level.
SYSTEM DIAGRAM
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