EVAPORATIVE (EVAP) EMISSION CONTROL SYSTEM
To reduce HC emission, evaporated fuel from the fuel tank is routed through the charcoal canister to the intake manifold for
combustion in the cylinders. ’
HC from canister is led into
air intake manifold.
HC from tank is absorbed
in the canister.
HC from tank is absorbed
in the canister.
Check Valve is Charcoal Canister
(Air is led into the fuel tank.)
Positioned below
purge port
Positioned above
purge port
Throttle Valve
Opening
Evaporated Fuel (HC)
Above
54C (129F)
High pressure
in tank
Engine
Coolant
Temp.
Check
Valve in
Cap
High vacuum
in tank
Below
35C (95F)
CLOSED
CLOSED
CLOSED
CLOSED
CLOSED
OPEN
OPEN
OPEN
OPEN
OPEN
TVV
–ENGINE EMISSION CONTROL SYSTEMS
EG2–145
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