ok i ran open headers for like a week and had a code that i resolve p1153 ( lean on bank2). well i had a header leak ifixed that along with added pipe extensions 24 in long to save the o2 from misreads. well i got it back together drove a few times...fine and then ses light came on so i went autozone to have codes scanned i got p0140 and p0160. both front o2 not active for current op conditions. are my o2's fried??? help asap

 

P0140 and P0160 are rear 02 insufficient activity codes.

 

ok i just miss read the printout thanks a lot