Discovery II Talk about the Land Rover Discovery II within.
Sponsored by:
Sponsored by:

O2 sensor question

Thread Tools
 
Search this Thread
 
Old Nov 29, 2018 | 06:59 PM
  #11  
Wesley Lueders's Avatar
Thread Starter
|
Three Wheeling
Joined: Mar 2018
Posts: 81
Likes: 23
From: Federal Way Wa. USA
Default


fuel trims at operating temp

the two front O2 sensors idling at operating temp
 
Reply
Old Nov 29, 2018 | 08:17 PM
  #12  
Extinct's Avatar
Baja
Joined: Feb 2013
Posts: 5,305
Likes: 1,817
From: Lynchburg VA
Default

Hard to tell based on your graph (it looks different than mine), but the right one is much slower than the left. Still it looks like your problem is the right one. What are the actual P numbers?
 
Reply
Old Nov 29, 2018 | 09:15 PM
  #13  
Wesley Lueders's Avatar
Thread Starter
|
Three Wheeling
Joined: Mar 2018
Posts: 81
Likes: 23
From: Federal Way Wa. USA
Default

Originally Posted by Extinct
Hard to tell based on your graph (it looks different than mine), but the right one is much slower than the left. Still it looks like your problem is the right one. What are the actual P numbers?
I'm still learning this iLand scanner tool from AB. Could you explain to me what "P numbers" are? If I can have an idea of what those are, I can find them in the live data menu and post it here.

Thanks for everyone's help so far!

Wesley
 
Reply
Old Nov 30, 2018 | 05:49 AM
  #14  
Extinct's Avatar
Baja
Joined: Feb 2013
Posts: 5,305
Likes: 1,817
From: Lynchburg VA
Default

The actual trouble code numbers, usually Pxxxx format. The P stands for parameter.
 
Reply
Old Nov 30, 2018 | 09:45 PM
  #15  
redrover75's Avatar
Recovery Vehicle
Joined: Jun 2014
Posts: 1,033
Likes: 195
From: Central NJ
Default Hijack

UOTE=Extinct;671339]The actual trouble code numbers, usually Pxxxx format. The P stands for parameter.[/QUOTE]

let me hijack this. 1x2 does not respond. 1x2 is the rear drivers side, down stream? Should I just replace that one?
thanks



 
Reply
Old Dec 1, 2018 | 07:18 AM
  #16  
Extinct's Avatar
Baja
Joined: Feb 2013
Posts: 5,305
Likes: 1,817
From: Lynchburg VA
Default

Originally Posted by redrover75
UOTE=Extinct;671339]The actual trouble code numbers, usually Pxxxx format. The P stands for parameter.
let me hijack this. 1x2 does not respond. 1x2 is the rear drivers side, down stream? Should I just replace that one?
thanks[/QUOTE]

Neither one on that side is responding like it should, you should start by swapping the upstream left and right and seeing if they respond. The downstreams don't vary much because they are after the cats. They don't affect fuel mixture at all, they really are there just as a cat health monitor. There are companies that make downstream "test" plugs that replace the sensor so it will stop throwing codes. However if you want you can swap those left and right also.
 
Reply
Old Nov 10, 2022 | 08:47 PM
  #17  
mrrover94's Avatar
1st Gear
Joined: Nov 2022
Posts: 1
Likes: 0
Default

Originally Posted by Wesley Lueders
I'm chasing a couple of codes regarding the O2 sensors. The descriptions are:
Lambda sensor aging tv bank 2
Drive cycle C

Lambda sensor aging tp bank 2
Drive cycle C

So from my research, this means they are basically slow to respond, am I correct in this mode of thought? Does "tv" and "tp" refer to position, as in upstream and downstream, or something different?

Thanks for any wisdom provided,

Wesley
I know this is an old post, but I wanted to reply in case someone else has the same issue. I had exactly the same error code. I fixed it with Rislone Fuel and Exhaust (Cat) Cleaner. Put one bottle in at 1/2 tank, Drove it to 1/4 tank, put another bottle in on a full tank. Code went away. Looks like it "CAN" just be a dirty o2 sensor. Thing with Land Rover, wait 5 minutes and the code can disappear and then you get another one!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
KlamathMatt
Discovery II
9
Apr 17, 2020 05:27 AM
discover_discovery
Discovery II
5
Jul 25, 2019 06:14 AM
adolfojbonilla
Discovery II
37
Apr 13, 2016 07:03 AM
wyattparke
Discovery II
2
Jan 5, 2013 03:05 PM
RealRitzcracker
Discovery II
2
Aug 29, 2012 09:12 PM




All times are GMT -5. The time now is 10:44 PM.