関連ワード:  are o2 sensors the same for upstream and downstream    are o2 sensors the same    are o2 sensors the same size    are all o2 sensors the same    are all o2 sensors the same size    are both o2 sensors the same    are all o2 sensors the same socket size    are all o2 sensors the same thread    are all o2 sensors the same thread size    are all o2 sensors the same on a car