I was wondering if you ever got it figured out and the CEL issue solved? We installed the 2M cats this weekend and now the CEL light is on and I'm assuming for a similar issue to yours. I have a code reader coming tomorrow but thought I'd do some research and was hoping you solved your problem...
Was wondering if you ever got this solved? I installed the 2m Cats and now I have CEL as well. Getting code reader today but I'm assuming it's something similar to your issue. Hoping it was a simple fix. Any advice you have would be greatly appreciated. Regards