Evaporative Emission Control System Description

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Fuel system

Fuel evaporation is a normal process in any fuel system. The purpose of the evaporative (EVAP) emission system is to limit the amount of fuel vapors, hydrocarbons, escaping into the atmosphere. To accomplish this, the EVAP system transfers the fuel vapors that accumulate in the fuel tank into an...

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Document Title: Evaporative Emission Control System Description

fuel

normal

system

evaporative

evap

emission

tank

canister

engine

stored

vapor

fresh

purge

solenoid

enhanced

vent

located

rear

pressure

sensor

service

port

manifold

part

valve

allows

vacuum

port

fuel vapors

evap system

fuel tank

evap canister

stored fuel

fuel vapor

vent solenoid

system canister

tank pressure

canister purge

enhanced evap

stored fuel vapor

evap canister vent

canister vent solenoid

fuel tank pressure

tank pressure sensor

evap system canister

engine manifold vacuum