JB4tech.com - International Turbo Tuning Discussion
(#1)
Old
zenocchio zenocchio is offline
Junior Member
 
Posts: 33
Join Date: Mar 2015
Car: 05 m3
Default O2 sensors gone south? - 02-08-2017, 07:54 PM

I suspect that my O2 sensors or *** are faulty. I have a stock 535xi with JB4 and DCI.
The max mileage that I'm getting is 7.8km/l about 18MPG on highway or 14.8MPG mix.

I changed the injectors less than 5000km ago as a couple were bad.

The O2 sensors read as follow:
Bank 1 pre *** 2.1V post *** O.74V
Bank 2 pre *** 2.1V post *** oscillating between 0.1 and 0.9

Time for O2 sensors? What is the normal behaviour?

Last edited by zenocchio; 02-08-2017 at 08:17 PM..
Reply With Quote
(#2)
Old
zenocchio zenocchio is offline
Junior Member
 
Posts: 33
Join Date: Mar 2015
Car: 05 m3
Default 02-08-2017, 08:15 PM

pic attached
Attached Images
 
Reply With Quote
(#3)
Old
Mr. T Mr. T is offline
Junior Member
 
Posts: 162
Join Date: Sep 2015
Car: 135i
Default 02-09-2017, 11:25 AM

I actually have an 02 for bank 2 precat sitting around if you'd like to buy it. Is the car throwing any codes, are you able to hit boost?
Reply With Quote
(#4)
Old
zenocchio zenocchio is offline
Junior Member
 
Posts: 33
Join Date: Mar 2015
Car: 05 m3
Default 02-09-2017, 11:50 AM

Quote:
Originally Posted by Mr. T
I actually have an 02 for bank 2 precat sitting around if you'd like to buy it. Is the car throwing any codes, are you able to hit boost?
I get often 29F4 and 29F5 codes
boost is ok
Reply With Quote
(#5)
Old
zenocchio zenocchio is offline
Junior Member
 
Posts: 33
Join Date: Mar 2015
Car: 05 m3
Default 02-15-2017, 02:45 PM

Any insight?
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

Forum Jump




vBulletin Skin developed by: vBStyles.com
Copyright 2007 - 2022, JB4tech.com