At times the catalytic converter can become plugged because of the use of leaded fuel in the engine. The honeycomb core may also disintegrate.
Use the following procedures to inspect the catalytic converter.
- Check to see if their is leaded fuel in the engine. Also check to see if the restrictor ring has been removed from the fuel inlet. If leaded fuel has been used or if the restrictor has been removed, the catalytic converter will need to be replaced.
- A rotten egg smell is often produced by vehicles that have a catalytic converter. This odor is generally caused from too rich a mixture in the carburetor. If this smell persists check the carburetor adjustments or try using another type of fuel to eliminate the odor.
- Pellets coming out of the exhaust indicate that the catalytic converter is damaged internally. Replace as necessary.