Trying to replace the front (upstream) o2 sensor of a 2015 Mazda 3 isport but struggling. It's my first attempt. The o2 sensor socket I have is the long one. I will try and buy the short one to see if that will work. The long one doesn't seem to have a "bite" since it's tight under the hood of my Mazda 3.
If I need to use a lubricant to remove a hard to remove o2 sensor, what would anyone suggest?
If I need to use a lubricant to remove a hard to remove o2 sensor, what would anyone suggest?