Need help understanding code P0175
Soooooo quick backgrounder: ‘05 Roadster Limited, 41K miles. Previous owner put on the most recent 4K miles in the last 2+ years, so lots of sitting. Bought it, drove cross country 4K miles in 3+ days with zero problems. Depending on what was geographically available, I only put in 92 or 93 octane. Probably the most fun car I’ve ever had!
Back home, after it rested overnight, drove to DMV & home, about 20 miles, mostly 60-65 mph in posted 60. Runs Perfectly!! BUT, Check Engine light came on in last 10 minutes of that ride. Bought the Autel MS309 and it says: “P0175, system too rich bank 2”.
NO clue what that actually means or what I should do next! Ideas? Answers?
Thanks for your help!!