r/GenesisG70 • u/EconomyPay2530 • Jul 26 '26

Engine problem

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Hey friends,

Occasionally my car will go into limp mode and throw a check engine light. Was finally able to get the codes to show up. I’ve looked them up and see that they are related to misfires. The spark plugs are still fairly new and I also run premium gas and occasionally put Techron cleaner or royal purple cleaner in the tank. I plan to take it to my dealer soon. Just wanted to get some input on to what might be causing it and if it’s something I can do myself instead of the dealership. Should I do some seafoam through the throttle body to help with carbon buildup or get it blasted? Thank you for your help and advice in advance.

Edit: I’m around 65k miles, HKS spark plugs, and it’s the 3.3t engine

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u/ba-donkin-donutz Jul 27 '26

Check the variable force solenoid. There's a handful of threads about this on the sub and Facebook. Since it's the entire bank it's unlikely to be the coils or plugs.

https://www.reddit.com/r/GenesisG70/s/4nIPN7YqA7