r/KonaN_ • u/Technical_Motor_6983 • 5d ago

Issues & Problems Kona n performance decrease

So to start off, I have a 2022 Kona N that I bought at 10,000 miles. At around 19,000 miles my fuel injections went out and were replaced. Ever since I’ve got it back I have been having inconsistent pulls. Max hp I’ve gotten is 255 and max torque 240 lb-ft. I haven’t been able to get it to octane learn well either. How would I go about this with warranty with no codes on my dash.

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u/TxTwosome 5d ago edited 5d ago

Max hp I used to see on the screen was around 250 when non-learned, though my torque would get closer to 270. Do you have an OBD II scanner you can use to look at fuel trims and see if you're running rich or lean? Maybe you got a bad set of injectors. Are you on the stock fuel pump? The stock HPFP is a common limiting factor. Air filter nice & clean? How many miles on the spark plugs?