96Pathfinder4x4 Posted May 17, 2012 Share Posted May 17, 2012 Ran across this today. I thought it might come in handy for someone who didn't have a manual handy. http://x.nissanhelp.com/forums/diy-projects/18315-1996-2011-nissan-pathfinder-f-sensor-o2-sensor-location.html Link to comment Share on other sites More sharing options...
sroeser01 Posted May 18, 2012 Share Posted May 18, 2012 That was such a help thanks ! i just got a code for one and wasnt sure where one of em was...sweet! Link to comment Share on other sites More sharing options...
96Pathfinder4x4 Posted May 21, 2012 Author Share Posted May 21, 2012 What code did you get? I'm looking at : P0130. Bank 1 Sensor 1, but also PO300 - Random Misfire, P0325 - Knock sensor 1, bank 1, P0171 System too lean. I think it's all lead from the O2 sensor.... :? Link to comment Share on other sites More sharing options...
Towncivilian Posted May 21, 2012 Share Posted May 21, 2012 Yes, a faulty upstream O2 sensor can cause those codes if it's faulty, by causing an improper fuel/air ratio. Replace the sensor to begin with. Link to comment Share on other sites More sharing options...
sroeser01 Posted May 21, 2012 Share Posted May 21, 2012 (edited) P0136 o2 circut (bank, 1 sensor 2) so what do i replace? also got P0335 crankshaft position sensor A circuit...so just replace i assume? and also why is each code coming up exactly the same more than one time? Edited May 21, 2012 by sroeser01 Link to comment Share on other sites More sharing options...
Towncivilian Posted May 22, 2012 Share Posted May 22, 2012 P0136 is the passenger's side post-cat O2 sensor. Buy this direct-fit Bosch sensor from Amazon for $60 shipped (assuming you have an auto trans here). Buy this crankshaft position sensor for $30 - 5% discount + shipping. Link to comment Share on other sites More sharing options...
96Pathfinder4x4 Posted May 24, 2012 Author Share Posted May 24, 2012 P0136 o2 circut (bank, 1 sensor 2) so what do i replace? also got P0335 crankshaft position sensor A circuit...so just replace i assume? and also why is each code coming up exactly the same more than one time? I would replace the O2 sensor and clear the codes...see if the crank sensor was a fluke. I bought the universal fit from Autozone and soldered the old connector in place. A bit of heatshrink and some electrical tape for good measure. Saved me $25 + tax. Now I'm getting surging in the engine at idle. I'll drive it a bit and see if I get any more codes. I'm not sure, but I'm wondering if the computer needs to recalibrate??? Link to comment Share on other sites More sharing options...
96Pathfinder4x4 Posted May 24, 2012 Author Share Posted May 24, 2012 Yes, a faulty upstream O2 sensor can cause those codes if it's faulty, by causing an improper fuel/air ratio. Replace the sensor to begin with. Thanks! That's what I was thinking. Link to comment Share on other sites More sharing options...
Towncivilian Posted May 24, 2012 Share Posted May 24, 2012 You're not supposed to solder O2 wires, the sensors "breathe" oxygen through the O2 sensor. Link to comment Share on other sites More sharing options...
96Pathfinder4x4 Posted May 24, 2012 Author Share Posted May 24, 2012 You're not supposed to solder O2 wires, the sensors "breathe" oxygen through the O2 sensor. Why not solder them??? They are electrical connections....no more resistive load than putting a crimp in the connection path. Link to comment Share on other sites More sharing options...
96Pathfinder4x4 Posted May 24, 2012 Author Share Posted May 24, 2012 Spent the last few minutes googling the subject....looks like it's the typical two sided debate. I'll touch on my opinion...and what I get of what I read. Some are worried about the solder creating resistance and the solder job due to the nickel coating. aka....the "quality of soldering" that is out there, if you put a glob-job on it, it will create too much resistance. I'm a decent solderer, so I won't sweat that part. (Micro-miniature certified) I don't buy the "breathing" issue, as all the wire does is transmit a voltage to the ECU. I looked at the wires that came off (approximately 24 gauge wire) no way are they breathing anything. Maybe they are referring to newer models? I'm pretty sure that a 96 Pathfinder will be a bit less touchy (voltage-wise) than a 2012 vehicle, but you never know, right? I'll hang on to the bosch crimp bag for a bit....if I notice a problem, I'll cut it out and crimp it. Murphy's law....if I have the bag on my shelf for future use, I'll probably never need it. Link to comment Share on other sites More sharing options...
sroeser01 Posted May 26, 2012 Share Posted May 26, 2012 Changed out the faulty O2 sensor and cleared the code and drove to the store and back and O2 sensor code was gone but crank shaft position sensor code still came back on...so went and bought one, now the problem is i cant find the old one to get it out. Haynes says that its located at the back of the motor drivers side mounted to the transaxle housing. so i spent the last hour under there with lights and still cant locate it, any one have any pics or a link to a site showing where the hell it is, Thanks Link to comment Share on other sites More sharing options...
Towncivilian Posted May 26, 2012 Share Posted May 26, 2012 Link to comment Share on other sites More sharing options...
96Pathfinder4x4 Posted July 3, 2012 Author Share Posted July 3, 2012 For the record, it's been almost 2 months and no codes since replacing my O2 sensor, via solder method. Again, from what I've read, it's the newer models that are more sensitive to soldering. Also, I'm sure there are alot of what we call "glob jobs" out there that will certainly increase the resistance in the wire. Disclaimer: This is my experience...if you solder your O2 sensor and it doesn't work...not my fault. Link to comment Share on other sites More sharing options...
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