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

17 Codes...places to start?

Old Aug 13, 2012 | 04:02 PM
  #11  
br0keit's Avatar
Rock Crawling
Joined: Apr 2012
Posts: 420
Likes: 2
From: Sayreville, NJ
Default

Hate to be the bad news guy but most likely you just had a bare wire on one of your o2 sensors. As i'm sure you figured out since its fixed, you probably blew a fuse (fuse 2). That fuse is for all of those parts that were throwing codes. It happens when a bare wire to one of them (or a failing component) blows the fuse, then they all go. You could have probably just fixed it with some high temp tape though if you had high mileage you still didnt do too bad by replacing the sensors as they were probably going out soon anyways. If it does trip again my bet is on a bare wire somewhere, find it, fix it, and you'll be in the hole $.05 for a piece of tape.
 
Reply
Old Aug 14, 2012 | 10:16 AM
  #12  
TRIARII's Avatar
TReK
Joined: Aug 2011
Posts: 3,167
Likes: 87
Default

Originally Posted by br0keit
Hate to be the bad news guy but most likely you just had a bare wire on one of your o2 sensors. As i'm sure you figured out since its fixed, you probably blew a fuse (fuse 2). That fuse is for all of those parts that were throwing codes. It happens when a bare wire to one of them (or a failing component) blows the fuse, then they all go. You could have probably just fixed it with some high temp tape though if you had high mileage you still didnt do too bad by replacing the sensors as they were probably going out soon anyways. If it does trip again my bet is on a bare wire somewhere, find it, fix it, and you'll be in the hole $.05 for a piece of tape.


Either way he would have had to replace those O2 sensors eventually, so now that's one more thing he can check out off his service list as completed. Plus it should helo maintain his fuel economy.

Good work on the fix nevertheless, gonna say that 17 bloody codes all at once is crazy! Never knew that faulty O2 sensors could cause so much havoc! I think I'll go ahead and replace all mine just to be safe.
 
Reply
Old Aug 15, 2012 | 07:21 AM
  #13  
lrsmith62's Avatar
Thread Starter
|
Drifting
Joined: Aug 2012
Posts: 28
Likes: 0
Default

Thinking on it....one of the rears had one of the wires sitting a bit close to moving parts...may have been worn thru as it did feel very limp. Both rears were ready to be changed...black as tar....but the fronts were probably ok...still, had the car up and went ahead and changed all. Engine runs so much better now...happy with the fix! Thanks for the heads up on looking for wires next time!

Now, on to the passenger seat lumbar bladder....not looking forward to tracking down this issue!
 
Reply
Old Aug 15, 2012 | 07:42 AM
  #14  
Savannah Buzz's Avatar
Super Moderator
Joined: Jan 2011
Posts: 16,322
Likes: 88
From: Savannah Georgia
Default

Sometimes the RAVE electrical can provide an idea of what things look like and where connectors are. See attached for lumbar pump (C0974 connector).
 
Attached Files
File Type: pdf
d2 lumbar.pdf (123.1 KB, 117 views)
Reply
Old Aug 15, 2012 | 12:00 PM
  #15  
SiloMan's Avatar
4th Gear
Joined: Aug 2012
Posts: 4
Likes: 0
From: Roswell, New Mexico, USA
Default

lrsmith62 or anyone....just a quick question, please. Did you have to replace Fuse #2? If not, what would cause all 4 O2 sensors to go out at the same time. The reason I ask is because I'm trying to learn all I can.......Thanks everyone.
 
Reply
Old Aug 15, 2012 | 03:08 PM
  #16  
br0keit's Avatar
Rock Crawling
Joined: Apr 2012
Posts: 420
Likes: 2
From: Sayreville, NJ
Default

If memory serves me (and i'm sure savannah will come in here with 100 page pdf on the chemical composition of each wire) I believe fuse 2 protects the o2 heaters. It doesnt protect the communication lines or power for the sensors, that is a different fuse.
 
Reply
Old Dec 24, 2014 | 08:35 PM
  #17  
TRIARII's Avatar
TReK
Joined: Aug 2011
Posts: 3,167
Likes: 87
Default

Looks like im getting almost all the same codes so the first line of business will be replacing all 4 02 sensors.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
04SSHD
Discovery II
8
Apr 11, 2012 06:20 PM
Jrock
4X4 Events and Weekend Outings
0
Sep 21, 2008 02:57 PM
xavierf11
Discovery II
1
Dec 22, 2007 05:54 PM
Tink
General Range Rover Discussion - Archived
2
Jan 23, 2007 07:08 PM
airmarc
Discovery II
8
Sep 10, 2005 10:47 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 02:43 AM.