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Technical Information
273
Emission Control Systems (USA &
Canada only)
Source of Exhaust Emissions
The combustion process produces carbon monoxide (CO), oxides of
nitrogen (NOx) and hydrocarbons (HC). Control of hydrocarbons and
oxides of nitrogen is very important because, under certain
conditions, they react to form photochemical smog when subjected
to sunlight. Carbon monoxide does not react in the same way, but it
is toxic.
Honda Motor Co., Ltd. utilizes various systems to reduce carbon
monoxide, oxides of nitrogen and hydrocarbons.
Exhaust Emission Control System
The exhaust emission control system includes an oxygen sensor, a
three-way catalytic converter and a PGM-FI system.
No adjustment to this system should be made although periodic
inspection of the components is recommended.
The exhaust emission control system is separate from the crankcase
emission control system.
Evaporative Emission Control System
(USA - 50 states [meets California])
An evaporative emissions control system uses a canister filled with
charcoal to adsorb fuel vapor from the fuel tank while the engine is
off. The vapor is drawn into the engine and burned while driving.
Models sold in and used in California:
An add-on or modified part must be compliant with applicable ARB
evaporative emission control standards. A violation of this
requirement is punishable by civil and/or criminal punishment.
Crankcase Emission Control System
The engine is equipped with a closed crankcase system to prevent
discharging crankcase emissions into the atmosphere. Blow-by gas is
returned to the combustion chamber through the air cleaner.
18 SXS1000M-31HL46200.book 273 ページ ２０１７年５月２９日 月曜日 午前９時５０分
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