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2004 Ford F-150 Heritage Question: got two codes

 

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steve66, 4.6L V8, Moscow Mills, MO, May 26, 2012, 20:24
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like to know where they are front or back /passenger side or driver side when you are sitting in it.the codes are po171 and po174 both are system too lean bank 1 and bank 2 which ones are they and where are they located.front back left or right when sitting inside

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