Here's the short of it, while driving today I suddenly got the dreaded service engine soon light.
I noticed nothing in terms of anything obvious prior to it coming on...i.e. the coils going and giving me some rough idle the last time it popped up.


Anyhow my friend has one of the ole code readers and I asked him to plug it in and this is what we got back:

P0138 CKT slow response bank 1 sensor 2

P0139 sensor circuit high volts bank 1 sensor 2.

I cleared them out and nothing else so far.

A: What is this about?
B: Should I be worried?
C: Is this easy to fix if B is yes? And is there a write up on this already?

Thanks.

 

This should help:

http://maxima.theowensfamily.com/tsb/NTB02-051a.pdf

 

[QUOTE=Puppetmaster]This should help:

http://maxima.theowensfamily.com/tsb/NTB02-051a.pdf[/QUOT


Now please tell me this isn't something i have to go to the stealership for. i have no desire to shell out more $$$ to them.

that being said the tsb seems to indicate goldmine for them to do this service. any suggestions?

 

thats an oxygen sensor code, thats why my CEL is on right now on a 2002 GLE

 

thats for oxygen sensor...bank 1 sensor 2...just replace the whole thing...get your parts from

www.courtesyparts.com

 

Or I got hookups at Dublin Nissan

 

You can use the linked TSB to DIY. You can either find some generic O2 sensors or get some OEM ones either from a dealership or from DaveB. His contact info is 1-888-254-6060.

 

My 2k1 just pulled codes p0138 & p0139. How many actual parts are involved here? 1, 2, 3 or 4? The Advanced Auto Parts salesman listed 4 @ like $100 a piece. The service bulletin in this thread and my Haynes manual only show 1. Does anybody know which it is?