The three way catalytic converter contains precious metals that serve as catalysts, promoting chemical reactions to convert the exhaust gasses without affecting the metals.
The catalytic converter is referred to as a three-way catalyst, since it acts on HC, CO, and NOx. A replacement unit must be an original Honda part or its equivalent.
The three way catalytic converter must operate at a high temperature for the chemical reactions to take place. It can set on fire any combustible materials that come near it. Park your vehicle away from high grass, dry leaves, or other flammables.

A defective three way catalytic converter contributes to air pollution, and can impair your engine’s performance.
Follow these guidelines to protect your vehicle’s three way catalytic converter.
• Always use unleaded gasoline.
Even a small amount of leaded gasoline can contaminate the catalyst metals, making the three way catalytic converter ineffective.
• Keep the engine well maintained.
• Have your vehicle diagnosed and repaired if it is misfiring, backfiring, stalling, or otherwise not running properly.
Introduction
Congratulations! Your selection of a 2008 Honda Fit was a wise investment.
It will give you years of driving pleasure.
One of the best ways to enhance the enjoyment of your new vehicle is to read
...
A/T System Description - Lock-Up System (A/T)
Lock-up SystemThe lock-up mechanism of the torque converter
clutch operates in all five gears in D, in 3rd gear in D3, and 3rd and 4th
gears in S with the automatic shift mode. The pressurize ...
Intermediate Shaft Removal (A/T)
Drain the transmission fluid. Reinstall the drain plug with a new sealing
washer.
Remove the right driveshaft.
Remove the shift cable cover (A).
Re ...