Cherokee 4WD V6-173 2.8L VIN W 2-bbl (1985)
Fig. 7 Dual bed monolithic type catalytic converter
DUAL BED (TWC & COC) MONOLITHIC TYPE CONVERTER
This type of converter, Fig. 7, 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.
