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:
Front Driveshaft Reassembly
Exploded View
NOTE: Refer to the Exploded View as needed during
this procedure.
Inboard Joint Side
1. Wrap the splines with vinyl tape (A) to prevent
damaging to the inboard boot.
2. Install the inboard boot onto the drives haft, then
remove the vinyl tape. Be careful not to damage the
inboard boo
DTC P0457: EVAP System Leak Detected/Fuel
Fill Cap Loose or Missing
NOTE: Before you troubleshoot, record all freeze data and any on-board
snapshot, and review the general troubleshooting information.
1. Check the fuel fill cap (the cap must say "Tighten to
click"). It should turn 1/4 turn after it's tight, then it
clicks.
Is the correct fuel fill cap installed a
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