A few weeks ago I installed pcds along with j-pipe and third cat delete. Everything went great but a week later the cel popped up. I had it scanned n it showed up front bank bottom 02 sensor. He deleted the code but it came back the next day. Anyone have an idea of why im getting the code and how to fix it. Thanks

 

are the defoulers installed?

if they are, it could be you need a smaller hole in the defouler... contact richie for assistance he's always on top of his game

 

Well is there chance of any harm to the engine? I mean I know the cel is on bc it is detecting the cats are not doing their job but will the engine try to compensate by reducing performance or whatever to reduce emissions

 

I ran into the same problem, and resolved the issue with 90 degree defoulers. Talk to Richie, as he jumped through hoops for me when I started having problems: sending me custom defoulers first then the 90 degree ones after the custom ones didnt fix the CEL. I've been CEL-free for over 8 months now!

The CEL wont harm your engine but could put your car into a "limp" mode with is a very conservative performance mode.