so i just replace my primary o2 sensor for the P0135 code with a replacement new from carjunky.com with part # NP2349064 and it is still throwing the CEL i have basic bolt ons i/h/e i was just wondering what the problem would be no weird sounds coming for the motor or anything

which prim o2 sensor cannot fit into a 02 types rsx? can a 05-06 types one fit a 02? anyone who could help thanks.