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 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
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
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
GAUGE CONTROL MODULE
Input Test
Replacement
IMMOBILIZER-KEYLESS CONTROL UNIT
(Built in receiver)
MICU (Built into the under-dash fuse/relay box)
Input Test
Replacement
General Troubleshooting Information
Troubleshooting CAN Circuit Related Problems
NOT
Special Tools Required
Stem seal driver 07PAD-001 0000
Valve spring compressor attachment 07757-PJ1010A
1. Coat the valve stems with engine oil. Install the
valves in the valve guides.
2. Check that the valves move up and down smoothly.
3. Install the spring seats on the cylinder head.
4. Ins
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