EMISSION CONTROL SYSTEM
The emission control system of your Caution for the Inspection and 2. Evaporative emission con-
vehicle is covered by a written limited Maintenance Test (With Electronic
warranty. Please see the warranty Stability Control (ESC) system)
trol system
The Evaporative Emission Control
System is designed to prevent fuel
vapors from escaping into the atmos-
phere.
information contained in the Service
Passport in your vehicle.
Your vehicle is equipped with an
emission control system to meet all
emission regulations.
•
To prevent the vehicle from mis-
firing during dynamometer test-
ing, turn the Electronic Stability
Control (ESC) system off by
pressing the ESC switch.
Canister
Fuel vapors generated inside the fuel
There are three emission control • After dynamometer testing is
systems which are as follows. completed, turn the ESC system
back on by pressing the ESC tank are absorbed and stored in the
switch again.
onboard canister.When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surge
tank through the purge control sole-
noid valve.
(1)
(2)
(3)
Crankcase emission control sys-
tem
Evaporative emission control sys-
tem
1.
Crankcase emission control
system
Exhaust emission control system
The positive crankcase ventilation
system is employed to prevent air
pollution caused by blow-by gases
being emitted from the crankcase.
This system supplies fresh filtered air
to the crankcase through the air
intake hose. Inside the crankcase,
the fresh air mixes with blow-by
gases, which then pass through the
PCV valve into the induction system.
Purge Control Solenoid Valve
(PCSV)
In order to assure the proper function
of the emission control systems, it is
recommended that you have your
car inspected and maintained by an
7
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms-up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
authorized
HYUNDAI
dealer
in
accordance with the maintenance
schedule in this manual.
7-97
| Categories | Hyundai Manuals, Hyundai Tucson Manuals |
|---|---|
| Download File |
|
| Document Type | Owners Manual |
| Language | English |
| Product Brand | Hyundai, Tucson |
| Document File Type | |
| Copyright | Attribution Non-commercial |
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