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...