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.

READ NEXT:

 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:

 Valve Body

Valve Body and ATF Strainer Removal NOTE: The illustration shows the 4WD transmission; the 2WD is similar. 1. Remove the ATF feed pipes (A) and ATF joint pipes (B). 2. Remove the ATF strainer (C) (two bolts), 3. Remove the regulator valve body (D) (eight bolts), 4. Remove the stator shaft (E) and

 VTEC/VTC

Component Location Index ROCKER ARM OIL CONTROL VALVE Removal/Installation ROCKER ARM OIL PRESSURE SWITCH Removal/Installation CAMSHAFT POSITION (CMP) SENSOR A (INTAKE) Replacement POWERTRAIN CONTROL MODULE (PCM) Gene

© 2016-2025 Copyright www.hcrv.net