B1S1 02 reading odd..car bucking, surging, popping exhaust look at this scan HPTuners
09-10-2008, 03:38 PM
#1
Launching!
Thread Starter
iTrader: (8)
Join Date: Jun 2006
Location: Memphis, TN
Posts: 289
Likes: 0
Received 0 Likes
on
0 Posts
B1S1 02 reading odd..car bucking, surging, popping exhaust look at this scan HPTuners I just changed the 02s to the Bosch13111's and car still acts up and gets a weird reading under WOT. Here is a scan to show it in attachment (HPTUNER)
I cannot think of what it could be but there is a severe loss of power and it really is not enjoyable to drive. It acts as if it is clogged up... the old sensor
(B1S1) was black as hell, running way rich.
ANy ideas?
I cannot think of what it could be but there is a severe loss of power and it really is not enjoyable to drive. It acts as if it is clogged up... the old sensor
(B1S1) was black as hell, running way rich.
ANy ideas?
09-10-2008, 05:17 PM
#2
okay what i saw was....... in the first and second WOT run the b1s1 first read fine the suddenly droped wich is odd.. im not sure whats cousing that. try swaping both b1 sensors and see what the readings will be...
Last edited by Engine_HP; 09-10-2008 at 07:12 PM.
09-10-2008, 06:57 PM
#3
TECH Regular
iTrader: (2)
Join Date: Feb 2004
Location: 1985
Posts: 426
Likes: 0
Received 0 Likes
on
0 Posts
You shouldnt really be using the NB to do WOT tuning- From the log given at quick glance, if you are just running a basic tune - Id say your LTFT and stfts are to loose -
Swap sensors as listed to test for bad 02 if it runs the same, spend some more time dialing the maf in. Wideband is priceless at this point
Swap sensors as listed to test for bad 02 if it runs the same, spend some more time dialing the maf in. Wideband is priceless at this point
09-11-2008, 08:08 AM
#7
that means the B1S1 is not getting enough heat (might be from leaking exhaust or the b1s1 is not working properly). As i said in my earlly post swap both bank 1 sensors(it should be a very easy job it should not take more than 15 min`s) and shoot back a SCAN to see whats going on.
Trending Topics
09-11-2008, 09:36 AM
#8
Launching!
Thread Starter
iTrader: (8)
Join Date: Jun 2006
Location: Memphis, TN
Posts: 289
Likes: 0
Received 0 Likes
on
0 Posts
I only have one sensor on that side (ORY). It just started doing it over the summer but I didnt drive it much. I just swapped the stock 02s for brand new Bosch 13111 which tells me it shouldnt be the sensors because they are new and especially since its the same bank acting up. It could be an exhaust leak. Ill check that first. Ill post my tune up later when I get home. Thank you guys for the help! Im missing about 50-100HP.
09-11-2008, 10:10 AM
#9
10% is a healthy amount of error... sounds like you have work left to do and +10 is definitely not OK. If you are going to keep LTFTs, positive trims need to be avoided. They will "lock" and hold while in PE and screw up your WOT fueling. They will still be adding.
09-12-2008, 08:53 AM
#12
I just changed the 02s to the Bosch13111's and car still acts up and gets a weird reading under WOT. Here is a scan to show it in attachment (HPTUNER)
I cannot think of what it could be but there is a severe loss of power and it really is not enjoyable to drive. It acts as if it is clogged up... the old sensor
(B1S1) was black as hell, running way rich.
ANy ideas?
I cannot think of what it could be but there is a severe loss of power and it really is not enjoyable to drive. It acts as if it is clogged up... the old sensor
(B1S1) was black as hell, running way rich.
ANy ideas?
Just looked back through your logs; man that is a huge side to side split in fueling.
I would swap injectors from left to right and see if they issue follows. You are viciously lean on at least one bank at WOT. I'd lay off until you get it figured out. This isn't a tune issue, something physical appears to be wrong.
