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1999 mazda b2500 code po 171

Discussion in 'Ford Ranger - Mazda B-Series Forum' started by ggilder, July 29, 2011.

^^Searches ExplorerForum.com^^

  1. ggilder

    ggilder New Member

    July 28, 2011
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    1999 mazda b2500
    I have a 1999 mazda b2500 with the code po 171 system too lean bank 1 I canged the fuel filter and checked fuel rail pressure it was 39 could it be the fuel pump or fuel pressure regulator or intake gaskets
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