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Old 01-13-2013, 09:53 PM   #1
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Join Date: Oct 2005
Fan#: 29198
Location: Lake Stevens, WA
What I Drive: 2009 Focus SES

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Check Engine Light Problem

I installed a Steeda throttle body spacer a couple of months ago. Now about every 2 weeks give or take I get a P0171 code (System Too Lean Bank 1). Everything is tight and installed the way it is suppose to be. Anyone have any ideas? It is tuned by FSWerks I wonder if that makes a difference?

2009 Focus SES Coupe
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