My engine shakes, makes pinging sound

I have no check engine light just asc light was cause my throttle was back firing so I went exploring so here and there I mess with it I was able to get the light off at first but the last time I did work on it I couldnt take it off. When I broke down I was getting on the on ramp freeway when I hit the step-tronic for sport mode and right after my car made a loud clank! Clank! As the same time I started loosing engine power and speed till I couldnt budge it sounded like big hard material going through a fan crumbling in pieces

Whats a con rod? But ya I think it all over for that motor, can it be possible that the oil filter housing cap cause its been a little cracked with a little leak but now its leaking alot that its holding back engine power and acceleration? I know I should of bought one a long time ago but if that was not going to make a difference then thats the last of my worries till I fix the problem at least. Well if my motor did give way do anyone know a place that will get and put an engine in for real cheap?

Thank you for your time and patience it is highly appreciated I will be looking for a new motor