Honda CR-V: Emissions Controls
The burning of gasoline in your
vehicle’s engine produces several byproducts.
Some of these are carbon
monoxide (CO), oxides of nitrogen
(NOx), and hydrocarbons (HC).
Gasoline evaporating from the tank
also produces hydrocarbons. Controlling
the production of NOx, CO,
and HC is important to the environment.
Under certain conditions of
sunlight and climate, NOx and HC
react to form photochemical ‘‘smog.’’
Carbon monoxide does not contribute
to smog creation, but it is a
poisonous gas.
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The United States Clean Air Act*
sets standards for automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
work and what to do to
Your vehicle has a positive
crankcase ventilation system. This
keeps gasses that build up in the
engine’s crankcase from going into
the atmosphere. The positive
crankcase ventilation valve
As gasoline evaporates in the fuel
tank, an evaporative emissions
control canister filled with charcoal
adsorbs the vapor. It is stored in this
canister while the engine is off. After
the en
SEE MORE:
1. Open the hood.
To change the turn signal bulb on
the driver’s side, remove the
engine coolant reserve tank by
pulling it out of its holder.
2. Remove the socket from the
headlight assembly by turning it
one-quarter turn counterclockwise.
3. Pull the bulb straight out of its
s
Special Tools Required
SRS inflator simulator 07SAZ-TB4011A
SRS simulator lead L 070AZ-SNAA300
SRS short canceller 070AZ-SAA0100
NOTE: Before doing this troubleshooting procedure, review SRS Precautions and
Procedures.
1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check t
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