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Originally Posted by vath2001

Join Renntech.org

But until you do, this is what I found:

P0171 Oxygen Sensing Adaptation, Idle Range, Bank 1 - Above Limit
P0174 Oxygen Sensing Adaptation, Idle Range, Bank 2 - Above Limit

Good luck

Thanks for researching Renntech; I'll join. The AutoZone guys read the codes as 'both banks running lean' and the most probable cause the MAF sensor. $285 later for a new MAF sensor and I still have the problem. Is it possible that the oxygen sensor on both banks would go bad simultaneously?