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I have looked, and not found much. Has anyone replaced the upstream oxygen sensors. I have a P015B code. Its a 2016 Z51 M7. If anyone has, do you have any tips or tricks to assist in replacing one or both of them. I cannot even find an assembly drawing showing where they are located.
Should be located in the downpipes coming off the head, just before and after the cats. Look at items 26, 27 and 31, 32
I would soak them overnite and then get ya a socket that is made for removing them.
currently trying to remove upstream B2 S1 Sensor. its so stuck on there. it snapped my Sensor socket in half with a breaker bar. i have Codes P0050 and P0051... and P0004. amazingly there are no C7 videos on Youtube on the best way to remove these sensors. im shocked.
currently trying to remove upstream B2 S1 Sensor. its so stuck on there. it snapped my Sensor socket in half with a breaker bar. i have Codes P0050 and P0051... and P0004. amazingly there are no C7 videos on Youtube on the best way to remove these sensors. im shocked.
If it is that stuck, maybe a hot flame? If you are not comfortable with that or unable to do it, get a professional.
Oxygen Sensor replacement
