Question about 2005 Ford F 250 Super Duty

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How do i fix code p0171 on my 2005 f250sd

I looked for vacuum leeks

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The P0171 is a lean condition that can be caused by several things, usually a vacuum leak, or plugged fuel filter, weak fuel pump, or restricted injector.
Does the truck lack power? what engine size is it? 5.4L or 6.8L?
p0171 is a condition based code, changing an o2 sensor will not necessarily fix this concern. it is just reporting more oxygen in the exhaust than it should be.

Posted on Nov 23, 2014

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Posted on Jan 02, 2017

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