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Re: 2012 Ford Focus 2.0 DOHC non Flex Fuel P0171
Posted to Technical Discussion Forum on 8/28/2015 2 Replies

Robert here are some pictures of Freeze frames of original diagnostic with P0171, Engine was at idle and the weird thing is that Short fuel trim is too low while Long fuel trim is too high, vehicle was at idle, however Engine runs rough and when cold hard to i... Login to read more.

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