Honda CR-V: 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

 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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DTC P0301: No.1 Cylinder Misfire Detected DTC P0302: No.2 Cylinder Misfire Detected DTC P0303: No.3 Cylinder Misfire Detected DTC P0304: No.4 Cylinder Misfire Detected Special Tools Required Pressure gauge adapter 07NAJ-P07010A A/T low pressure gauge w/panel 07406-0070301 A/T pressure hose 07406

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NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review General Troubleshooting Information. 1. Clear the DTC with the HDS. 2. Turn the ignition switch ON. 3. Check whether DTC P2122 is indicated in the DTCs/ Freeze Data in PGM-FI Mode Menu with the HDS. Is D

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