Nissan 370Z Forum  

P2A00 woes. O2 sensor... again

At ~19k miles my car threw this code, reset it multiple times, and had the O2 sensor, as specified in in service manual, replaced under warranty. No more SES light

Go Back   Nissan 370Z Forum > Tech Area > Nissan 370Z Warranty / Scheduled Maintenance / Servicing / Repairs

Reply
 
LinkBack Thread Tools Display Modes
Old 05-01-2011, 11:05 PM   #1 (permalink)
A True Z Fanatic
 
takjak2's Avatar
 
Join Date: Feb 2011
Location: Fairfax
Posts: 1,485
Drives: Nismo to the track.
Rep Power: 7
takjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud of
Default P2A00 woes. O2 sensor... again

At ~19k miles my car threw this code, reset it multiple times, and had the O2 sensor, as specified in in service manual, replaced under warranty. No more SES light for almost 3k miles.

After some rough driving it came again and I took it to a different dealership. They again replaced an O2 sensor under warranty, noting that the wire had "been stripped"/abraded some (that could have been me) and that it looked jarred (sounded to me like a poor install the last time?). Supervisor said that should fix it but "if it comes up again we'll have to look at the fuel system" [implied sender]. Another thousand plus miles no SES light.

There was a P0400 code (I think that's what it was), same as others with aftermarket exhausts or test pipes except that mine is entirely stock nismo. Reset it, saw it again after a hundred miles, reset it, and have not seen it for at least another 1000 miles.

Now the P2A00 is back again and haunting me after a reset. Any thoughts before it goes in tomorrow?
__________________
Mods | Stuff | Things | Seat Time | Nismo
takjak2 is offline   Reply With Quote
Old 05-08-2011, 12:25 PM   #2 (permalink)
A True Z Fanatic
 
takjak2's Avatar
 
Join Date: Feb 2011
Location: Fairfax
Posts: 1,485
Drives: Nismo to the track.
Rep Power: 7
takjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud of
Default

No thoughts? Stuck in Army training for another two weeks before I can get the dealership's take.
__________________
Mods | Stuff | Things | Seat Time | Nismo
takjak2 is offline   Reply With Quote
Old 05-16-2011, 10:06 PM   #3 (permalink)
A True Z Fanatic
 
370zproject's Avatar
 
Join Date: Jul 2009
Location: Memphis
Age: 25
Posts: 16,064
Drives: 09 A/T 370z blue
Rep Power: 42
370zproject has a reputation beyond repute370zproject has a reputation beyond repute370zproject has a reputation beyond repute370zproject has a reputation beyond repute370zproject has a reputation beyond repute370zproject has a reputation beyond repute370zproject has a reputation beyond repute370zproject has a reputation beyond repute370zproject has a reputation beyond repute370zproject has a reputation beyond repute370zproject has a reputation beyond repute
Default

bump
__________________

Brake Upgrade Package ate blue, hawk hp ceramic pads, and slotted rotors
370zproject is offline   Reply With Quote
Old 05-17-2011, 08:44 AM   #4 (permalink)
The "Bright" One
 
DIGItonium's Avatar
 
Join Date: Jan 2009
Location: Kansas
Posts: 3,425
Drives: 09 Z34-TT 6MT
Rep Power: 13
DIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to behold
Default

How does your car behave with the failed O2? How does it affect acceleration? Engine roughness due to weird fuel trimming? Just wondering... thanks!
__________________
My Car is STILL For Sale
http://www.the370z.com/image.php?type=sigpic&userid=950&dateline=13162988  42
DIGItonium is offline   Reply With Quote
Old 05-17-2011, 07:52 PM   #5 (permalink)
A True Z Fanatic
 
takjak2's Avatar
 
Join Date: Feb 2011
Location: Fairfax
Posts: 1,485
Drives: Nismo to the track.
Rep Power: 7
takjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud of
Default

I believe this sensor does not affect the ECU, just a warning/indicator/emissions. I have not noticed any change in performance through this.
__________________
Mods | Stuff | Things | Seat Time | Nismo
takjak2 is offline   Reply With Quote
Old 05-17-2011, 11:59 PM   #6 (permalink)
The "Bright" One
 
DIGItonium's Avatar
 
Join Date: Jan 2009
Location: Kansas
Posts: 3,425
Drives: 09 Z34-TT 6MT
Rep Power: 13
DIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to beholdDIGItonium is a splendid one to behold
Default

Did you look up the code to see what other problems might be? It's probably more than just the O2 sensor, but something cause it to get fouled up.

A 350Z owner mentioned replacing a MAF and O2 sensor.

Quote:
"AF sensor 11 range/performance problem"
Probable causes:
1 - Excessive rich or lean condition
2 - Exhaust leak near sensor
3 - Failed AF sensor
Quote:
Air fuel ratio (A/F) sensor 1
Air fuel ratio (A/F) sensor 1 heater
Fuel pressure
Fuel injector
Intake air leaks
__________________
My Car is STILL For Sale
http://www.the370z.com/image.php?type=sigpic&userid=950&dateline=13162988  42
DIGItonium is offline   Reply With Quote
Old 02-28-2012, 03:50 PM   #7 (permalink)
A True Z Fanatic
 
takjak2's Avatar
 
Join Date: Feb 2011
Location: Fairfax
Posts: 1,485
Drives: Nismo to the track.
Rep Power: 7
takjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud of
Default

Another O2 sensor in and the same SES light has been around. It definitely does not affect performance, I just want them to try and get it right before the first warranty expires. They ordered a new ECM which will be here Thursday.

If they can't fix it I'll just go uprev and delete the damn thing.
__________________
Mods | Stuff | Things | Seat Time | Nismo
takjak2 is offline   Reply With Quote
Old 03-12-2012, 04:33 PM   #8 (permalink)
Enthusiast Member
 
Join Date: Aug 2010
Location: Tamarac FL
Posts: 324
Drives: 10 Nissan 370Z MB M6
Rep Power: 5
gaveup is on a distinguished road
Default

So what happened?

My car currently has this. Its annoying erasing it every couple hundred miles.
__________________
2010 Magnetic Black Metallic 370Z 6M
stillen gen 3 CAI - topspeed test pipes - invidia gemini CBE - UpRev tune
301whp (HP Logic Mustang Dyno)
gaveup is offline   Reply With Quote
Old 03-12-2012, 10:28 PM   #9 (permalink)
A True Z Fanatic
 
takjak2's Avatar
 
Join Date: Feb 2011
Location: Fairfax
Posts: 1,485
Drives: Nismo to the track.
Rep Power: 7
takjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud oftakjak2 has much to be proud of
Default

ECM didn't fix it, came back on 34 miles later. Might have them keep trying, since it's warranty work anyways or will just delete with uprev after I make the jump in classes next winter.
__________________
Mods | Stuff | Things | Seat Time | Nismo
takjak2 is offline   Reply With Quote
Old 03-13-2012, 10:36 AM   #10 (permalink)
Enthusiast Member
 
Join Date: Aug 2010
Location: Tamarac FL
Posts: 324
Drives: 10 Nissan 370Z MB M6
Rep Power: 5
gaveup is on a distinguished road
Default

Quote:
Originally Posted by takjak2 View Post
ECM didn't fix it, came back on 34 miles later. Might have them keep trying, since it's warranty work anyways or will just delete with uprev after I make the jump in classes next winter.
Just a thought if I were in your shoes, I'd lemon law the car.
__________________
2010 Magnetic Black Metallic 370Z 6M
stillen gen 3 CAI - topspeed test pipes - invidia gemini CBE - UpRev tune
301whp (HP Logic Mustang Dyno)
gaveup is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
fuel gauge woes houkouonchi Nissan 370Z General Discussions 38 06-05-2013 07:17 AM
CEL Code - P2A00 evse82 Intake/Exhaust 22 03-01-2012 05:53 PM
Retread Woes PJRabbit Nismo 370Z 7 11-16-2010 01:50 AM
Throwing code P2A00 after installing stock cats ArtVandaleigh Engine & Drivetrain 8 11-03-2010 05:48 PM


All times are GMT -5. The time now is 03:04 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2