Recent content by Sfusmc1
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Engine code 171 sys too lean bank 2
When in overdrive on highway I am losing power when trying to excellerate and engine light starts to blink. It also happens when going up hills too fast. Was informed the the code was 171 sys too lean bank 2. I have replaced OS on previous vehicles but this symtom is different. My engine is...- Sfusmc1
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- Forum: 2nd Gen Ford Expedition Engine & Performance
