Is there any new info on GM code po15D

Question

The vehicle is a 2013 Tahoe with the 5.3 V8. It runs fine and has no apparent exhaust leaks or vacuum leaks. It keeps setting code po15d and turning on the cel. I replaced the 02 sensor on the right bank before the converter with a new AC Delco unit. Same trouble. Any help will be appreciated.

Answer 1

P015D H02S delayed response Lean to rich Bank 2 Sensor 1

This would be for Bank 2 , before the catalytic convertor If you where to stand in front of the engine cylinder or Bank 2 would be on left hand side, When there is a delayed response from a 02 sensor , a misfire condition would make the 02 sensor slow so sparkplug are important application. the airflow if there is a restriction would also make the 02 sensor delayed