Power loss and misfire

Question

I have this 04 rsx type s and it needed a lot of stuff done like fuel pump with filters, injectors, sparks and even the cat and a universal o2 sensor and it's still giving me a p0302 for misfire and still saying bank 1 sensor is bad and if maybe it could need the 100k valve adjustment and it's also stating other misfires but randomly and never consistent car is bogged down under 3k rpms but is fine at higher rpms and resumes to run ok in that range it also acts like it wants to stall after accelerator is pressed and released revving to 3 k rpm any ideas? or is any one a rsx enthusiast? Car is stock except for aem intake and exhaust tip.