A few months ago my check engine light came on but then soon went off after a day, I thought I was a misread on the cars end, but a couple days ago I went and got gas about 5 min later my check engine light came back on then 2 days later it turned back off. I ran my own diagnostic scan with the code p0138 (to high voltage to the o2 sensor) the car will also jerk once a week just about wail I’m getting up to highway speed

 

See private message.