how to install a new catalytic on my car, do i also have replace the 02 sensor?
Sep 25, 2008 at 4:35 AM
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KHLOW2008
CAR REPAIR CONTRIBUTOR
41,814 POSTS
Hi evolution09,
Catalytic converters are bolt on units so there should be no probelm replacing it. Spray some rust remover on the bolts prior to unloosening to prevent them from seizing.
If the O2 sensors are not faulty, it is not neccesary to replace them.