Honda CR-V: The Clean Air Act
Honda CR-V (2006–2011) Owner's Manual / Technical Information / Emissions Controls / 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 maintain them. This section summarizes how the emissions controls work.
* In Canada, Honda vehicles comply with the Canadian emission requirements, as specified in an agreement with Environment Canada, at the time they are manufactured.
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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
Onboard Refueling Vapor Recovery
The onboard refueling vapor
recovery (ORVR) system captures
the fuel vapors during refueling. The
vapors are adsorbed in a canister
filled with activated carbon. While
driving, the fuel vapo
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Cam Chain Removal
NOTE: Keep the cam chain away from magnetic fields.
1. Remove the front wheels.
2. Remove the splash shield (see step 21).
3. Remove the drive belt.
4. Remove the cylinder head cover.
5. Set the No.1 piston at top dead center (TDG). The
punch mark (A) on the variable valve timing control
(VTG) a
Immobilizer System
The immobilizer system protects
your vehicle from theft. If an
improperly coded key (or other
device) is used, the engine’s fuel
system is disabled.
When you turn the ignition switch to
the ON (II) position, the immobilizer
system indicator should come on
briefly, then go off. If th
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