ok guys 1st of all i got a cheap code reader called creader trouble shooter. i installed some long tubes and and y w/no cats and o2 sims, and about 2 weeks ago i installed the bosch 13111 o2 sensors when i put them on after a hr of driving i got a ses light so i deleted it and it was gone untill today when it came back on again now the code number for this is 1153 which just so happens to not be in the reader manual, but the ones before 1151 and 1152 says lack of upstream heated o2 sensor switch,sensor indicates lean/rich bank#2,then 1154 and 1155 says rear main 0s sensor siganl faulty then1157 and 1158 says lack of downstream. i know it sounds confusing but can you guys please help me out? i checked the front o2's and everything looks good

 

Stickies @ the top
Hawk

 

https://ls1tech.com/forums/pcm-diagnostics-tuning/436986-jet-hot-lts-denso-vette-rears.html

 

so i should be ok then