Honda CR-V manuals

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.

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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

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 Rear Window Defogger

Component Location Index UNDER-DASH FUSE/ RELAY BOX UNDER-HOOD FUSE/RELAY BOX REAR WINDOW DEFOGGER RELAY HVAC CONTROL UNIT REAR WINDOW DEFOGGER SWITCH/ MIRROR DEFOGGER SWITCH REAR WINDOW DEFOGGER Circuit Diagram Function Test NOTE: Be careful not to scratch or damage the defogger wire

 System Description

Outline The rear differential has a real-time 4WD control mechanism that enables 4WD by transmitting appropriate driving force from the front wheels to the rear wheels when necessary. It uses a real-time 4WD dual pump system (DPS) with a light and compact cam mechanism, and integrates the drive co

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