L lolly New member Apr 30, 2010 #1 UGH!! What is wrong with my truck? It says bank 2 cat below efficiency. we replaced the o2 sensor in front of the cat conv. fixing to replace the one behind it. anyone have any idea? does it sound like its the cat conv? how much is it to replace?
UGH!! What is wrong with my truck? It says bank 2 cat below efficiency. we replaced the o2 sensor in front of the cat conv. fixing to replace the one behind it. anyone have any idea? does it sound like its the cat conv? how much is it to replace?
