I just checked my cel codes and found that it is the knock sensor and downstream o2. The downstream doesnt look like to hard of a job but, I know the knock will be a b***ch. I have noticed decreased power/acceleration lately which i think is a sign of the knock sensor. I keep hearing that bad o2 sensors will trip the knock sensor and hopefully replacing the o2 will fix that? Otherwise im in for an o2 and knock sensor replacement.

 

Can anyone help me?