need bb Posted March 7, 2017 Share Posted March 7, 2017 I recently removed my catch can as it wasn't CA smog compliant and replaced it with a new OEM PCV valve. After doing this my fuel trims were around -12.5% across the board. To fix the issue I rescaled K&N Typhoon intake. After fixing MAF scaling I am now close to maxing out my MAF on my K&N Typhoon intake. I looked back a couple years at my previous logs, and my MAF previously maxed out around 4.8v where now I am running 4.96v. Would I have a boost leak even though I was running rich? Just trying to determine if this is the new "normal" state for my LGT or if I have an issue. Thanks Link to comment Share on other sites More sharing options...
need bb Posted March 8, 2017 Author Share Posted March 8, 2017 Well I think I had a boost leak as I re-tightened the TMIC, and now by MAF is back to 4.8v. Link to comment Share on other sites More sharing options...
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