I got the Challenger Dark Horse and same engine misfired issues. Dealer cleared the codes and bike run ok till gas up. Clearing the code doesn't fix it. This happened for the 3rd times and dealer has no fix for my bike yet. Contact Indian/Polaris, they're aware of the issues with my bike and others nation wide. They told me to give them couple of weeks to get my bike issues fix. Got my a bike last Decemberwith 600 miles on it. All 3 issues started after every time gas up. Gas up at Chevron with 91 octane. All 3 incidents were in standard mode.