K7elh

Hi everyone, I haven't had my Pathfinder very long, so forgive me if I'm not attuned to its anatomy. I'm getting a P0420 code and will be replacing the O2 sensors first. My question is, where is bank 1? And is it the pre-cat or post cat O2? Or should I just replace all 4? I didn't realize that this thing has 4 of them. Thanks for any input...

Hi, relatively new here. My daughter has a 2003 Nissan Pathfinder SE with the 3.5L V6 in it. It seems like it is missing, but when I went to look, it looks like the plugs have individual coils on each one. The local auto parts store has coils ($$$!!) AND wires listed. I didn't see wires, but in that mess of an engine compartment, I cannot tell. I'm fairly competent (I think anyways), but unless I am wrong, it should have either/or not both. Am I correct? Thanks for any help. Eric H Fallbrook, CA

Hi everyone, I bought a 2003 Pathfinder SE 2WD about a year ago, and I was needing some info on it, so I thought I'd join to see if I can pick some brains. Lol.. It is pretty clean. Was just under 200k on it when I bought it and now it has about 212k. I've always wanted one since I test drove a 1998 a few ages ago. I'm having an issue with it right now, so hopefully I can get some ideas. Thanks!