E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > What might cause frequent O2 sensor failures?



Reply
 
Thread Tools Search this Thread
      01-11-2022, 10:38 AM   #1
Quick335XI
First Lieutenant
Quick335XI's Avatar
120
Rep
338
Posts

Drives: 2010 335xi
Join Date: Dec 2017
Location: Dallas

iTrader: (0)

What might cause frequent O2 sensor failures?

I had to replace my O2 sensors about 5 months ago, now another one has gone bad and I'm getting ECu codes and open loop issues. What sort of things might cause this?
__________________
2010 335XI, Carillo Steel rods, JE pistons, Closed Deck, Stage 4 race heads, 6mt, Pure Stage 2 High Flows, B58 Coils, VRSF|Vu Brothers (Ft Worth, TX)|JSRTuning,

https://youtube.com/channel/UC_kL3RvFSGv9QmTVt6787gg
Appreciate 0
      01-13-2022, 11:10 AM   #2
Quick335XI
First Lieutenant
Quick335XI's Avatar
120
Rep
338
Posts

Drives: 2010 335xi
Join Date: Dec 2017
Location: Dallas

iTrader: (0)

Anyone?
__________________
2010 335XI, Carillo Steel rods, JE pistons, Closed Deck, Stage 4 race heads, 6mt, Pure Stage 2 High Flows, B58 Coils, VRSF|Vu Brothers (Ft Worth, TX)|JSRTuning,

https://youtube.com/channel/UC_kL3RvFSGv9QmTVt6787gg
Appreciate 0
      01-13-2022, 09:30 PM   #3
feuer
Major General
feuer's Avatar
United_States
4289
Rep
9,226
Posts

Drives: wife crazy!
Join Date: Apr 2015
Location: Chicago, IL

iTrader: (5)

Quote:
Originally Posted by Quick335XI View Post
Anyone?
If you burning oil and coolant o2 won't last long. Also engine running rich. Damaged during installed or manufacturer defect too.
Appreciate 0
      01-13-2022, 09:58 PM   #4
Mustafa.e92
Lieutenant
Mustafa.e92's Avatar
214
Rep
499
Posts

Drives: 2009 bmw 335i
Join Date: Feb 2020
Location: Canada

iTrader: (0)

flame tune will cook them pretty quick
Appreciate 1
feuer4289.00
      01-15-2022, 05:15 PM   #5
Quick335XI
First Lieutenant
Quick335XI's Avatar
120
Rep
338
Posts

Drives: 2010 335xi
Join Date: Dec 2017
Location: Dallas

iTrader: (0)

Quote:
Originally Posted by feuer View Post
If you burning oil and coolant o2 won't last long. Also engine running rich. Damaged during installed or manufacturer defect too.
Ok thanks. Motor is rebuilt so hopefully shouldn’t be burning coolant or oil lol. We’ve been tuning it though so maybe rich sometimes.
Appreciate 0
      01-15-2022, 11:02 PM   #6
feuer
Major General
feuer's Avatar
United_States
4289
Rep
9,226
Posts

Drives: wife crazy!
Join Date: Apr 2015
Location: Chicago, IL

iTrader: (5)

Quote:
Originally Posted by Quick335XI View Post
Ok thanks. Motor is rebuilt so hopefully shouldn’t be burning coolant or oil lol. We’ve been tuning it though so maybe rich sometimes.
Are you adding coolant or oil? Did you rebuild the engine yourself?
Appreciate 0
      01-19-2022, 10:48 AM   #7
Quick335XI
First Lieutenant
Quick335XI's Avatar
120
Rep
338
Posts

Drives: 2010 335xi
Join Date: Dec 2017
Location: Dallas

iTrader: (0)

Quote:
Originally Posted by feuer View Post
Are you adding coolant or oil? Did you rebuild the engine yourself?
It was rebuilt by a shop in town

I'm having to add oil periodically because one of the turbo lines as a small leak

I created a thread a while back about having to add a little coolant over the course of a year and was told that's typical

Thanks
__________________
2010 335XI, Carillo Steel rods, JE pistons, Closed Deck, Stage 4 race heads, 6mt, Pure Stage 2 High Flows, B58 Coils, VRSF|Vu Brothers (Ft Worth, TX)|JSRTuning,

https://youtube.com/channel/UC_kL3RvFSGv9QmTVt6787gg
Appreciate 0
      01-20-2022, 03:02 PM   #8
feuer
Major General
feuer's Avatar
United_States
4289
Rep
9,226
Posts

Drives: wife crazy!
Join Date: Apr 2015
Location: Chicago, IL

iTrader: (5)

Quote:
Originally Posted by Quick335XI View Post
It was rebuilt by a shop in town

I'm having to add oil periodically because one of the turbo lines as a small leak

I created a thread a while back about having to add a little coolant over the course of a year and was told that's typical

Thanks
Then is probably fueling that is causing the problem.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -5. The time now is 02:47 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST