Originally Posted by dusman59
Cats not ready either wire problem or not up to temp. EGR might not ever show up as pass as some vehicles its a NA test.
Cats have never read, but EGR has always been good. Only recently have both not set. Started after a cam install and new tune. According to state regs I need one or the other to set in order to pass. All other 3 monitors are good to go.