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Fuel Evaporation Control
Fuel tan k ve nting
The evaporation chamber and the carbon canister
prevent fuel from escaping to the atmosphere at
extreme high outside tem peratures, when driving
abruptly around curves and when the car is parked
at an incline or in any other nonlevel po sition.
Vapor control system and storage
When the fuel tank is filled, vapors are collec ted
in the evaporation c hamber by a vent li ne leading
the vapors to the ca rbon canister where they are
stored as long as the engine does not run.
Purge system
When the engine is running, the fuel vapors from
the canister will be mixed with fresh air from the
ambient air of the canister. This mixt ure will be
directed t o the i ntake air housing by the ta nk vent
line, mi xed with the intake air an d burned during
normal combustion.
Maintenance, Car Care
227
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