xczar
Member
I have a 1997 2-door/4wd Yukon. I have a OBD code P0155, mentioning the o2 sensor. I am about to replace this sensor (bank 2, sensor 1), but a friend is telling me it could be the Air/Fuel/Ratio sensor instead. Is there such a thing on my truck? If so, would it be on the exhaust manafold upstream of the bank 2, sensor 1, o2 sensor? Are there 2 Air/Fuel/Ratio sensors?
Thought this sensor thing was going to be easy. I`ve been trying to locate the right o2 all day (sensor location, which trans in truck/how many trans pan bolts, etc), now find out it could be another component?
As always, the more experianced are appreciated!
God Bless America
Thought this sensor thing was going to be easy. I`ve been trying to locate the right o2 all day (sensor location, which trans in truck/how many trans pan bolts, etc), now find out it could be another component?
As always, the more experianced are appreciated!
God Bless America
