Bone stock lq4 here. Last trip out I developed a rough idle after taking a hard hit to the belly. Checked the codes and it's showing a dead o2 sensor, which makes sense. Haven't touched it in over a month but went to move it today and it's idling the same at cold start. I figured if it was on o2, it wouldn't act up until it went to closed loop. Codes are still just showing that bad o2, not even picking up a misfire and fuel pressure is about 62 lbs at the rails. Any ideas?