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Bank one means the same side of the engine as the number one cylinder. Number 2 would be the second sensor on that side. usually this means that you could have 2 or more catalytic converters and that it could be after one of these.

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โˆ™ 2006-03-27 03:48:03
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Q: Where is bank one oxygen sensor number two located on a 1999 Nissan Pathfinder 4X4 3.3L V6?
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