Wagoneer L6-258 4.2L VIN C 2-bbl (1982)
Catalytic Converter: Description and Operation
Dual Bed (TWC & COC) Monolithic Type Converter
Fig. 17 Dual Bed Catalytic Converter
This type of converter is two converters in one container. The front half is a three-way catalytic (TWC) converter while the rear half is a
conventional oxidizing catalytic (COC) converter. The rear half of the converter has a provision for "downstream" air injection.
As with the three-way catalytic (TWC converter, this converter must be used in conjunction with a feedback carburetor system in order to maintain
high efficiency.
