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

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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

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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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Component Location Index EXHAUST GAS RECIRCULATION (EGR) VALVE POWERTRAIN CONTROL MODULE (PCM) EXHAUST GAS RECIRCULATION (EGR) PLATE DTC Troubleshooting DTC P0401: EGR Insufficient Flow NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the genera

 Valve Clearance Adjustment

Special Tools Required Adjuster 07MAA-PR70110 Locknut wrench 07MAA-PR70120 NOTE: Adjust the valves only when the cylinder head temperature is less than 100 ºF (38 ºC). 1. Remove the cylinder head cover. 2. Set the No.1 piston at top dead center (TDC). The punch mark (A) on the variable valve

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