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  1. Powertrain & Driveline
    In my limited knowledge of fuel trims (still learning), I've been trying to find what is causing a reoccurring lean condition P0171 on my '11 Xterra. It is a weird one for a couple of reasons: 1. First code threw, I cleared it, then it came back 2 months and 1500 miles later 2. LTFT/STFT on both...
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