Honda CR-V: The Clean Air Act
Honda CR-V (2006–2011) Owner's Manual / Technical Information / Emissions Controls / 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 maintain them. This section summarizes how the emissions controls work.
* In Canada, Honda vehicles comply with the Canadian emission requirements, as specified in an agreement with Environment Canada, at the time they are manufactured.
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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
Onboard Refueling Vapor Recovery
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
SEE MORE:
DTC P2122: APP Sensor A (Throttle Position
Sensor D) Circuit Low Voltage
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information.
1. Turn the ignition switch ON (Ill.
2. Check APP SENSOR A in the DATA LIST with the
HDS.
Is there about 0.2 V or less?
YES-Go to step 3.
NO-Intermittent failure, t
Catalytic Converter System
Component Location Index
CATALYTIC CONVERTER
Removal/Installation
POWERTRAIN CONTROL MODULE (PCM)
General Troubleshooting information
Replacement
DTC Troubleshooting
DTC P0420: Catalyst System Efficiency Below
Threshold
NOTE:
Before you troubleshoot, record all f
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