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Breaking up fuel trim issues

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  • Breaking up fuel trim issues

    Veloster n DCT intake turbo intlet HKS plugs pre gapped having break up problems any map and I know the trims are way to high don’t know what to do . Fuel wire is tapped to wire 2 on the adapter​
    this was all on map 2 but 0 and bit 1 are disabled

  • #2
    I don't think it's your trims, your app is set up wrong (I believe)
    Default wastegate position should be 0
    PID gain should be 20
    Auto shift redux is 60
    FF/ should be 50
    Also, I wouldn't try customizing your fuel bias just yet, let the JB do it. It does a great job at leaning it where it needs to be. Running 10.0:1 is very rich, put your fuel Bias all to 0's and let the car adapt on it's own for now until the rest is sorted.


    • #3
      Should I have fuel bias at zero and same with duty bias ?


      • #4
        Duty bias is for EWG, I don't think you have those cables, so it won't matter. 0's for both is a good base until the car is sorted. The only reason you *might want to mess with Fuel Bias is if you run race gas and you have a custom Map6 that supports you leaning it out. Otherwise, you're really not accomplishing much other than creating an additional variable to troubleshoot if something gets weird.


        • #5
          Always post the CSV for tuning advice. But looks like a setting issue, FUA = 0 for the 2L motors.
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