i installed long tube headers on the 99, and in the process i broke one o2 sensor without realizing, threw a fuel trim CEL for bank 2

i looked at my evoscan logs and the sensor at 3c was reading less than 0.1 volt at all times, the long term fuel trims were maxed to 12.5% and the short term fuel trim was stuck on 12.5% also

i replaced the sensor but it is still reading less than 0.1 volt all the time, however my short term fuel trim is taking away 6-7% consistantly so i feel like the sensor is working

did i break another o2 also, does anyone know the MUT addresses for all four o2 sensors? since i was just using the preset evoscan addresses

front o2 sensor is reading right since readings were normal even with the other 3 o2 sensors taken out

thanks in advance for any help