Jump to content

k9sar

Members
 View Profile  See their activity

  • Posts

    9,906

  • Joined

  • Last visited

  • Days Won

    15

 Content Type 

Posts posted by k9sar

    P0430 code. Check my logic

    in 2005-2012 R51 Pathfinders

    Posted

    So the new(to me) pathy is periodically throwing a P0430 code which indicates an inefficiency in the catalyst system bank 2. I have read that a bad O2 sensor can cause this but I would expect an O2 sensor code if that were the case. I'd rather check this first before replacing the front DS cat. So here's my diagnostic logic..

     

    I should be able to remove the O2 sensor from behind the DS cat and swap it to the other side (PS). Not sure how the wiring is but I would think there is a plug or something that I can disconnect that will allow me to swap the sensors but leave the wiring intact (as if I were replacing the O2 sensors). I'll reset the codes and let the wife drive it for another few weeks to see if a code returns.

     

    one of the following should tell me my next step(s):

     

    1. P0430 returns - must be a bad CAT or bad O2 sensor harness wire since it remained on bank 2. visually/electrically check wire and probably replace cat.

    2. P04xx throws indicating inefficiency on Bank 1. This would say my O2 sensor is bad

    3. No codes - must have been a bad connection or something that got resolved when I swapped the sensors.

     

    Sound like reasonable logic?

    What did you do to your Pathfinder today?

    in The Garage

    Posted

    Decided it's finally time to let her go. Bought a 2005 Pathy and a small 4-door sedan in the past few weeks and need some relief on my car insurance bill. The 95 is the oldest of all my vehicles and will probably need a couple hundred dollars of work before inspection in October. I'm not sure I want to drag it along through another year. Now to decide whether to sell it whole, in parts or simply scrap it at the local yard.

     

    94 pathfinder electrical problem

    in 90-95 WD21 Pathfinders

    Posted · Edited by k9sar

    lol. guess I should have read the original post. Missed the 'it died' part.

     

    I have not heard of an ECU burning up but I suppose it's possible. If you pull the seat and ECU cover, shove your nose there and sniff. If it fried, it will have a definite burnt smell and maybe even some melt indication on the cover or connectors.

     

    if this is the case, get the numbers off the ECU and post. I might still have a spare that I pulled form a junkyard. Don't think they are completely interchangeable so matching a model or part number would be best. (23710-85P##)

    Factory brush guard

    in 90-95 WD21 Pathfinders

    Posted

    what kind is that?? I had one on my 95, got rid of it because I thought it was a no brand..... Maybe that wasn't the best decision

     

    Factory OEM bought from the dealership when I bought the pathy. Additional parts needed were the 2 inserts for where the fog-lights are stock, allowing the brush-bar to mount there and put the fogs on the bar. I always thought the ones with the headlight wrap-arounds were after-market

×
×
  • Create New...