Hi There, I just discovered your channel, I am intrigued. I bought a 2017 Hyundai Veloster used back in 2019 with 43K miles. The car currently has 117K miles, it’s a automatic not turbo. I am experiencing issues with misfires not while the cars running, but when it sits for more than 5 hours I turn on the ignition it shakes and has a flashing check engine. I had the catalytic converter change. Also, the spark plugs, ignition coil too. These two sensors as well. I repeatedly have the same code pop up P2191 (System to lean at Higher Load Bank 1) and another codes. I am about to junk this car. The Hyundai dealer is useless plus another mechanic that forgot to mention he only specializes in brakes and mufflers. What the hell should I do? I would appreciate it a great deal to hear back from you. Love the work your doing!  Best,