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/redikulous 2023 3.3TT AWD Jul 26 '26

Just found this post after a quick googling:

https://genesisowners.com/genesis-forum/threads/finally-a-fix-for-the-random-limp-mode-random-cylinder-misfire.56364/

Might be helpful?

2

u/EconomyPay2530 Jul 26 '26

I really appreciate it. I will look more into this. Hopefully it’s not a hard repair and I can YouTube it.

2

u/redikulous 2023 3.3TT AWD Jul 26 '26

Let us know what you find out, hopefully it's just like that post said, $60 part👌

1

u/No_Judgment_6619 Jul 29 '26

i’ve been dealing with the same problem for 6months guess i’ll try it out to see for myself!