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Old 09-28-2018, 01:02 PM   #1951
pdan
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Drives: 2009 VW Jetta TDI (sold), 2013 GTI
Join Date: Jan 2017
Location: Middle of F***ing Missouri
Posts: 258
Quote:
Originally Posted by smanierre View Post
The higher the fuel trim the leaner the car is running when following the base map. The fuel trim is what is correcting that, or at least attempting to. Have you checked all your connections. Could be a vacuum/boost leak that is causing that. When you said back to 1.5/1.6, what are you referencing there? If those are your fuel trims then I would think that is a huge issue.


I have a suspicion that I have a boost or vacuum leak because I popped p0491 yesterday and today. And Iím measuring LTFT, when I get on the throttle to start moving it drops from 1.20 to 1.05/1.06 sorry, decimal places make a huge difference ha.


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