I get all these codes constantly new O2s everything......but i have a few exhaust leaks pre and after cats have 2 new cats 2 1/4 inch back to box up to 2 1/5 to 4inch 36in semi stacks....curious as to whether the 4.7 needs more backpressure

its and 04 Ram 1500 SLT quad cab 4.7L 5sp man with true duals

P0420 Catalyst System Low Efficiency
P0158 HO2S Circuit High Voltage Bank 2 Sensor 2
P0153 HO2S Slow Response Bank 2 Sensor 1
P0133 HO2S Slow Response Bank 1 Sensor 1
P0138 HO2S Circuit High Voltage Bank 1 Sensor 2


any info on what might help if i just need to get rid of the exhaust leaks or what or put regulars 2-1-2 piping back on the truck well anything would be helpful thanks guys

 

bump ;>

 

bump sticker!