CEL after berks HFC install

NefariousZ34

So I got the CEL again for those who wanted to know I'm getting P2098 and P2096 Post catalyst fuel trim system too lean bank one and two. Still looking at which tune I want just a little disappointed that this happened with the Berks wish I went with CNT or another HFC less expensive now...

Since it's getting the codes I specifically bought these damn cats so I don't run into code issues -.-

Edit for update: I cleared the codes already but took it to the shop I had installed them and they were able to scrounge around for some steel wool he shoved that in there. Will update in another couple hundred miles to see if this fixes it. Hopefully will have exhaust and tune by then so that would fix it anyway. But just in case for those who want to know if the steel wool method works I will know in about a week maybe less two at the most.