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Thread: 2016 6.4 surge at wot above 5000 rpm

  1. 03-04-2023 #1
    LilSick
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    2016 6.4 surge at wot above 5000 rpm

    Added 3 oz of VP octanium maddative to a gallon of e85 and poured it in a almost empty tank. Filled it up with 91. Added 2 percent everywhere aircharge vs rpm PE table. First pass seemed fine (better than fine) until it was in 4th gear and started surging. Right at 4 mins 11 seconds. Water maybe or ??? Thoughts???
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  2. 03-26-2023 #2
    TaylorJ
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    I'm still on the old Version of HP, so the log is not going to work for me. How's he o2 readings when it surged ?
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  3. 03-26-2023 #3
    LilSick
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    I need to install a wide band but it was lean

    Added fuel and it went away

    Yeah yikes
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