I have exactly the same problem with the same codes. According to the service manager at my local Nissan dealership, it's highly unlikely that all 4 oxygen sensors would go bad at the same time so the problem is likely to be a bad ground connection. It could be a major fishing expedition to determine the exact cause so I came here looking for a solution to the problem and was hoping the original poster had posted the resolution. Does anyone know where the ground connection for the sensors is?
Thanks,
CG :)
Last edited by Canuckgold; 10-22-2009 at 11:30 AM.
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