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Re: 2012 Ford Focus 2.0 DOHC non Flex Fuel P0171
Posted to Technical Discussion Forum on 8/27/2015 6 Replies

The fuel trims are high throughout all the load ranges. In your captures, if you watch LTFT, anytime it decreases, STFT will start to ramp up to correct.

I believed I'd recheck the fuel for ethanol and/or look for something that would affect the accuracy of ... Login to read more.

6 Replies Received (View Replies)