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Re: More P0171/174 fun: '03 Expedition 4.6L
Posted to Technical Theory Forum on 5/21/2007 6 Replies

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Hi Allen. What isn't the problem? I'll take a guess that the MAF isn't under reporting since it's showing a calculated load of 92%. What would be my next step? I might check fuel pressure and volume i... Login to read more.

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