P0154 and P0134 pending?

[Rom]

Originally Posted by JFP in PA

P0134 and 0154 are codes for the interruption of signal from the O2 sensors on both banks. Usually, this is a wiring or connector issue.

Thanks! However, is it common for it to happen to two different banks at the same time when these codes have never been seen before on either bank? Just want to make sure there isn’t a common connection issue. I believe all four O2 sensors use a common rail, but then I would have thought I’d have seen 4 pending codes (unless it didn’t get a chance to show failures on the others before the wiring “corrected” itself).

Thanks!

S.