1998 Isuzu Trooper 3.5L Clogged CAT Diagnose

A compilation of videos posted to Facebook groups Isuzu Trooper Mafia and Isuzu Trader to get feedback and diagnose a clogged Left side/Bank 2 catalytic converter. As you can see in the scanner portion, the 4 o2 sensors are on the screen. The bottom one looks a little different than the other 3. That is Bank 2 Sensor 2 or Bank 2 downstream o2 sensor. I removed Bank 2 Sensor 1 or Bank 2 upstream o2 sensor. I did this to prove the CAT was indeed clogged. Removing the upstream sensor from the bank of a clogged CAT allows the engine to breathe through the open port instead of trying to breathe through the clogged CAT. In this case the CAT was clogged. I eventually had the exhaust system redone which is in another video.