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Location of Downstream O2 Sensor 2001 Frontier
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01-10-2017, 10:44 PM
smj999smj
Master Enthusiast
2006 Pathfinder
2003 Frontier King Cab
2003 Frontier KC SVE 4x4
Join Date: Jun 2012
Location: Prospect, VA
Posts: 1,866
There are two catalytic converters on a 2001 Frontier KA24DE. The upstream converter bolts right to the exhaust manifold. The downstream sensor is after the upstream converter, but probably before the rear converter.
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