well my problem is that i recently got a check engine light and checked the led on the ecu and that led me to code 1 oxygen content. so i swapped out o2 sensors for a new one and i go down the road and the check engine light comes back on and its code 1 oxygen content again. im not sure what else it could be? maybe its something else that could be giving the o2 sensor wrong readings? im not sure but i would greatly appreciate it if someone could help me out.