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po171
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  1. Maintenance & Repair
    Hi everyone! I’m new here and trying to diagnose a problem with my 2016 Altima 2.5. I had a dirty MAF sensor and fixed that problem, but now the good old PO171 code is showing. I have found no vacuum leaks (as best as I can tell, anyway). Here are the readings for my O2 sensors: D Do these look...
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