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    2004 Explorer 4.0 flex DTCs P0193 P0401 P0430

    Hey all, I'm a new member working on my mother-in-laws explorer. This is really the first Ford I've ever worked on and need some help. History: Single owner, 181,491 miles. The vehicle had P0171 & P0174 codes and wouldn't pass inspection. It had been driven this way for several months. It...
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