2007 Liberty threw a code today, P0138 - O2 Sensor 1/2 Circuit High
So that tells me Bank 1, 2nd (Downstream) O2 sensor has finally bit the dust?
And if so, I know I need the NTK replacement - https://www.rockauto.com/en/moreinfo.php?pk=1644772&cc=1433762&pt=5132&jsn=270
This seem correct? Any...