Originally Posted by CraZyDriVer868
ok question...if it was a bad cat would it smell like rotten eggs? or smell bad or anything...
Not in this case, because in this case the problem isn't that it'* quit functioning as a convertor; the problem is that it'* clogged. It'* not that it'* passing the exhaust through without converting it; the problem here seems to be that it'* not passing the exhaust through at all (at least not very well).
If yours is like mine was, it can push enough exhaust through that the engine can start and run, but as the convertor heats up, the blockage gets worse. You should also see higher readings than normal on your boost gauge, because the intake manifold pressures are higher than they should be. (i.e. lower vacuum than normal, higher boost than normal, tendency to kick down into low gear and surge acceleration through the wastegate or whatever...) Your top speed is probably not much better than 50-60 mph in extreme cases. Any of this sounding familiar?