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Re: 2003 Ford Explorer Sport XLT 4.0L w/ P0171
Posted to Technical Discussion Forum on 5/30/2014

[...trimmed text...]

The flash was for both. The original complaint was a CEL with a P0101, P0171 & 174, The MAF tested out defective by using fuel trim information. After the new MAF, the trims were still running over 20... Login to read more.