No throttle response,eml,check engine light is on.

What is your question?

So I recently bought this car was running fine but check engine light was on so replaced plugs,oil now car ran like shit po500 p0440, p0304,302, took throttle position sensor off it wasn't working and throttle butterfly wasn't moving so I cleaned throttle and tps both are working like should. So I'm going to throw it back together is there anything I should know or check before I do repairs. Thinking about deleting pcv system any suggestions or input or similar problems Lmk thanks.