Have you experienced a misfire like mine?

[Stinky]

How exact does an ethanol mixture need to be, I try to get as close to 40-60 ethanol to gas ratio as I can, but often I'm off by +/- 2-3%

 

[TyphoonFiST]

How exact does an ethanol mixture need to be, I try to get as close to 40-60 ethanol to gas ratio as I can, but often I'm off by +/- 2-3%

What are you running? E40...e50...e60? How are you measuring the Ethanol content?

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[Stinky]

What are you running? E40...e50...e60? How are you measuring the Ethanol content?

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e40 for now, I have an innovate gauge and sensor on my low pressure fuel pump

 

[TyphoonFiST]

Maybe the coils are struggling to keep up with the ethanol at the Higher RPm?

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[Stinky]

Maybe the coils are struggling to keep up with the ethanol at the Higher RPm?

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I bought NGK coils to replace the factory coils, and nothing changed. Actually, after less than 2k miles one of the NGK coils suddenly died and I had to drive home on 3 cylinders, now I have 2 of the factory coils in, and 2 ngk coils. I wanna see if any more will die

 

[HAHAFiST]

Running into similar issues. Curious what happened here

 

[agangel]

Buy a tune from a different tuner, start over.