2015 Mustang GT emissions problems..

[fastblackcar]

Issue resolved. Tuner could not even figure it out, said my Long Term Fuel Trims we're off and that it was super common, and that he had double turbos pass with my same situation, but sure enough he turned them on, 100 miles later, everything passed.

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[Zenaxia]

Did you learn that on TikTok or perhaps you Grokked it?

no a mechanic who tunes with lund told me that, granted he recently started tuning.