Quote Originally Posted by INASNT View Post
Are you using a 02 sensor spacer?

I am still having CEL issues with my Stage 2 with spacer. CEL goes off then come back on after a few days, getting a new file tomorrow to see if its finally fixes it.
Yeap, I’ve installed a Vibrant J spacer. This is meant to deal with the Cat efficiency CEL. The other CEL is related to O2 running lean, which I believe is tune related. Since flashing to the new tune, it’s been quite stable.