Hey everybody. Lately my engine has been hesitating a bit, especially on the freeway, and it idles a little rough. This is the same thing that happened when my O2 sensor went bad a while ago, except no CEL. I know I have a crack in my header in the typical spot, but could this actually be causing my problem? If it couldn't, I know there's about a thousand other things that could be the problem, so I'm hoping that's it, and that the solution is an excuse to buy a banks
. Any help is much appreciated.