Do cats go bad
#1
Do cats go bad
do the cats burn out when code P0430 comes up it comes on quickly after being cleared like within 5 miles. Its an 01 A6 4.2 130k, must be spendy to buy factory ones, do aftermarket work ok. I performed o2 aging test and cat test with vagcom, each test came up ok. Any help on this, Thanks
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