Honda CR-V: 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 engine is started and warmed up,
the vapor is drawn into the engine
and burned during driving.
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The onboard refueling vapor
recovery (ORVR) system captures
the fuel vapors during refueling. The
vapors are adsorbed in a canister
filled with activated carbon. While
driving, the fuel vapo
The exhaust emissions controls
include three systems: PGM-FI,
ignition timing control, and three
way catalytic converter. These three
systems work together to control the
engine’s combusti
The emissions control systems are
designed and certified to work together
in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you shoul
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Component Location Index
CAMSHAFT POSITION (CMP)
SENSOR B (EXHAUST)
OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR
POWERTRAIN CONTROL
MODULE (PCM)
ELECTRICAL LOAD
DETECTOR (ELD)
(bottom of fuse/relay box)
A/F SENSOR
(LAF) RELAY
(RELAY SOCKET E)
IGNITION
CO
DTC P0455: EVAP System Large Leak
Detected
DTC P0456: EVAP System Very Small Leak
Detected
NOTICE
The fuel system is designed to allow specified
maximum vacuum and pressure conditions. Do not
deviate from the vacuum and pressure tests as
indicated in these procedures. Excessive pressure/
vacuum wou
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