http://www.denlorstools.com/autoblog/2009/06/lean-codes-p0171-and-p0174-common-causes/ Automotive specialty tools, repair tips, insight from a Master Tech for DIY and professional auto technicians. Fri, 20 Nov 2009 20:49:40 -0800 http://wordpress.org/?v=2.8.5 hourly 1 http://www.denlorstools.com/autoblog/2009/06/lean-codes-p0171-and-p0174-common-causes/comment-page-1/#comment-1076 Mike Sun, 09 Aug 2009 21:43:39 +0000 http://www.denlorstools.com/autoblog/?p=107#comment-1076 I have a 2001 Jaguar S-Type. It was throwing a code P0171 as well as P0174. We took it to the mechanic and they said it could be a number of problems, so I researched online and found your site. It was the Intake hose on the TOP of the Motor. I could Hear "Hissing" and it was very easy to replace. The new hose only Cost me $6 Thank you very much for your help! You saved me alot of money~ I have a 2001 Jaguar S-Type. It was throwing a code P0171 as well as P0174. We took it to the mechanic and they said it could be a number of problems, so I researched online and found your site. It was the Intake hose on the TOP of the Motor. I could Hear “Hissing” and it was very easy to replace. The new hose only Cost me $6
Thank you very much for your help! You saved me alot of money~

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