2005-2011 Nissan frontier heavy smoking from exhaust

Catalytic converter sucked into engine bra, due to emissions overlapping valve timing.

[@AlexYakovlev-xi8lw]

Thanks for the video, I suspect the same problem with my frontier, did you replace the engine at this point?

[@jgrm4443]

That's actually a good and educational video. Thanks!

[@pierrecalderon8510]

TY