Jeff England

I just got off the phone with superchips and they said deleting the cold it still won't pass inspection.... how do you feel about what they said?

I was told eliminating the code still won't make it pass inspection.... pennsylvania resident

P420 and p430? Maybe

I have a 2016 sierra 5.3. It has longtube headers with high flow cats. Everything is hooked up correct with a superchip but now the check engine light is on throwing p040 and p050. Not sure what to do next? Any help would be appreciated.