u/Frequent_Quail7785

I am trying to track down this code and can’t seem to figure it out. I have knocked on the catalytic converters and here no rattling like the internals have gone bad. I have also tested the temperature before and after the cats and it’s 270 on the top side and 250 on the bottom. I was reading online and I seen that you can put a vacuum hose in the exhaust and turn the vacuum hose on the blower side and spray soapy water on the exhaust and look for bubbles and i’ve got some bubbles on my bank one side exhaust is this normal?. Has anyone had any luck with tracking this code down?