well my ss has been driving goofy lately, like coming up to a light throw it in neutral and I would go a bit rich (13.0 afr then climbs back up eventually), then it tries and corrects itself.. my b2 stft and b2 ltft are both -100 and my mv is 769 constantly (stuck), a bad rear o2 would cause these problems right? autozone wants $70, omg...

 

i dont think its the rear one more then likley the the other one it controls the afr

 

are you sure? because it was b2 which is bank 2.... I've had alot of exhaust work and ive had the o2 on since i bought the car, idk.

 

Check your front 02 sensor.

The rear one is for the cat. The front one controls the AFR.

 

rear o2 is useless just disable it