catalyst bank 1 or two?!?!
#1
catalyst bank 1 or two?!?!
someone please help me out.. i have a 2004 3.0 A4
codes say my cat is bad on bank 2. is this the driver's or passenger's side cat?
and if this was an oxygen sensor issue, which one exactly would it be? is there one per cat or two?
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pologoped2
Audi A6
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03-29-2013 10:14 PM