I was in the same boat, got tagged with that ugly lable "gross polluter" new cat cleaned the EGR tube and rebuilt carb and after that I was a winner. The cool thing is the guy that did the work has a 7 gas analyzer or something like that its like a smog machine,so he was able to pinpoint the problems and gauranteed it for 2 more smog tests. That was cool. If you go to a referee station they will tell you why it wont pass then after it is fixed and passes they will lift the gross polluter stigma.