Honda CR-V: Emissions Controls
Honda CR-V (2006–2011) Owner's Manual / Technical Information / 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.
- The Clean Air Act
- Crankcase Emissions Control System
- Evaporative Emissions Control System
- Onboard Refueling Vapor Recovery
- Exhaust Emissions Controls
- Replacement Parts
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The Clean Air Act
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
Crankcase Emissions Control System
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
Evaporative Emissions Control System
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:
DTC 31-3x ("x" can be 0 thru 9 or A thru F):
Short to Another Wire or Decreased
Resistance in Driver's Side Airbag Inflator
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
Headlight Adjustment
CAUTION
Headlights become very hot during use; do not
touch them or any attaching hardware immediately
after they have been turned off.
Before adjusting the headlights:
Park the vehicle on a level surface.
Make sure the tire pressures are correct.
The driver or someone who weighs the same should
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