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2008 GMC Sierra 1500 Question: computer indicates O2 sensors downstream of cat converter are faulty.

 

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Theozime, Socorro, NM, September 01, 2013, 11:22
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Changed sensors, engine light still on! computer printout mentioned a "FUSE" plus the O2 sensors to be changed. Is there a fuse in this system? Codes:P0161,P0141.P0060, P0056, P0054, P0036

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