Honda Accord: ThreeWay Catalytic Converters - Technical Information - Honda Accord 2008-2012 Owner's ManualHonda Accord: ThreeWay Catalytic Converters

The three way catalytic converters contain precious metals that serve as catalysts, promoting chemical reactions to convert the exhaust gasses without affecting the metals.

The catalytic converters are referred to as three-way catalysts, since they act on HC, CO, and NOx.

Replacement units must be original Honda parts or their equivalent.

The three way catalytic converters must operate at a high temperature for the chemical reactions to take place. They can set on fire any combustible materials that come near them. Park your vehicle away from high grass, dry leaves, or other flammables.

Defective three way catalytic

Defective three way catalytic converters contribute to air pollution, and can impair your engine’s performance. Follow these guidelines to protect your vehicle’s three way catalytic converters.

Always use unleaded gasoline.

Even a small amount of leaded gasoline can contaminate the catalyst metals, making the three way catalytic converters ineffective.

Keep the engine well maintained.

Keep the engine well maintained.

Have your vehicle diagnosed and repaired if it is misfiring, backfiring, stalling, or otherwise not running properly.

    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 fr ...

    Emissions Testing
    Testing of Readiness Codes If you take your vehicle for an emissions test shortly after the battery has been disconnected or gone dead, it may not pass the test. This is because of certain ‘ ...

    See also:

    Parking Brake Switch Test
    NOTE: if both the ABS/VSA indicator and the brake system indicator come on at the same time, check the VSA system for DTCs first (see page 19-48). 1. Remove the center console (see page 20-158). ...

    Front Seat Torsion Bar Replacement
    2-door Driver's seat (manual height adjustable seat) NOTE: - Put on gloves to protect your hands. - Take care not to tear or damage the seat covers. - When prying with a flat-tip screwdriver, ...

    Spark Plug Inspection
    1. Remove the ignition coils (see page 4-20). 2. Remove the spark plugs, then inspect the electrodes and the ceramic insulator. - Burned or worn electrodes may be caused by these conditions: ...