I just got this code last night,Is there a way the O2 sensors can be checked without removing them to find out which one is bad (if it is a sensor).If it is the cat would a MIL eliminator work in this situation to get rid of the CEL.My truck has 248k on it and is not worth spending alot of money on.

 

if you have a Tech 2 or a really really good code read it will let you see what the engine is doing when its running....how much load is on it TPS % if you get one like they you can check the o2 Voltage .45 is normal i belive Bank 1 is driver bank 2 is passenger senor 1 is the Front o2 and Senor 2 is behide the cats.thats the only way i can think of checking them without pulling them out