2015 Buick Encore catalytic converter / Check Engine light
I recently had my catalytic converter replaced, with an aftermarket one. I have also had an oxygen sensor replaced already. But I still keep getting the Check Engine light, relating to the catalytic converter. One problem has been a hole in the weld. I have taken it back to where I got the catalytic converter, and they have been nice enough to try and fix it. But also, there was a technical service bulletin regarding this situation. The Check Engine light still comes on, because there is something it doesn't like about the aftermarket catalytic converter. The solution is to have software re-downloaded. I have done that, but the Check Engine light STILL comes on. If I have the weld fixed AGAIN, will I need to have the software re-downloaded AGAIN ?