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KingLT1 · 08-29-2023, 08:17 AM

Log your fuel trim data. If long terms are excessively positive(+25% or higher at idle) then you have a vacuum leak or unmetered air getting in the system.

08-29-2023, 08:17 AM	#10
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,665	Log your fuel trim data. If long terms are excessively positive(+25% or higher at idle) then you have a vacuum leak or unmetered air getting in the system. __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel