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Hi there, It is extremely possible that bad gas caused this issue. Especially if it's cleared up. The code will stay in the system for a while in the history, but if the check engine light is out then it's not current so you needn't be concerned that it's still showing up. Being a newer model I think the fuel would actually be the most likely culprit unless there was some type of sensor glitch that caused it. You should also be able to go back to using the regular fuel instead of the higher octane gas.
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