P1170 code--O2 sensor
#1
#2
![Default](https://landroverforums.com/forum/images/icons/icon1.gif)
IIRC (P1170) you may wanna go underneath and check for leaks in the catalytic
converter before changing the O2 sensor. There's a post here about it. Do a search
On P1170.
-----
i know this is an old thread but the problems with the p1170 code --is ussually a hairline crack in the weld at the front of the passenger side(bank 1) converter-it spans across the top of the converter and can only be seen with a mirror--it can be fixed with simply running a bead weld acroos the top of the converter(you must drop the exhaust to gain access to it)
or
if your vehicle is still within the 8 or 80 manufacturer's emission warranty the dealer should replace it for free as per the federal gov't
By LandRoverLuke
-----
I had the same issue.
converter before changing the O2 sensor. There's a post here about it. Do a search
On P1170.
-----
i know this is an old thread but the problems with the p1170 code --is ussually a hairline crack in the weld at the front of the passenger side(bank 1) converter-it spans across the top of the converter and can only be seen with a mirror--it can be fixed with simply running a bead weld acroos the top of the converter(you must drop the exhaust to gain access to it)
or
if your vehicle is still within the 8 or 80 manufacturer's emission warranty the dealer should replace it for free as per the federal gov't
By LandRoverLuke
-----
I had the same issue.
Last edited by EVN137; 03-13-2012 at 05:03 PM.
#4
#5
![Default](https://landroverforums.com/forum/images/icons/icon1.gif)
I personally have used the O2 sensors from AB. I have no experience with generic O2 sensors. I know they are available, they usually have a pigtail that you have to splice
your old connector to. I have read posts here about others using them. try doing a search on it.
Given your mileage, you'll probably need all 4 sensors. At 90K miles, they've reached
their expected usefulness. Their declining performance is what triggers your MEL along
with other things. Gotta check other causes.
If I were in your shoes, and springing the 60 is a reach, try swapping just the affected
pre and post catalyst. The code usually clears after 2 driving cycles. If it works out
then swap the other side. If you get 30K miles from them, then you've reached your
break-even point ( 30K / 90K = 20 / 60 ).
Make sure you solder your leads well and use shrink wrap.
Maybe someone else will chime in.
All the best.
Ed
your old connector to. I have read posts here about others using them. try doing a search on it.
Given your mileage, you'll probably need all 4 sensors. At 90K miles, they've reached
their expected usefulness. Their declining performance is what triggers your MEL along
with other things. Gotta check other causes.
If I were in your shoes, and springing the 60 is a reach, try swapping just the affected
pre and post catalyst. The code usually clears after 2 driving cycles. If it works out
then swap the other side. If you get 30K miles from them, then you've reached your
break-even point ( 30K / 90K = 20 / 60 ).
Make sure you solder your leads well and use shrink wrap.
Maybe someone else will chime in.
All the best.
Ed
#6
#8
![Default](https://landroverforums.com/forum/images/icons/icon1.gif)
Money's very tight right now, so I went ahead and bought a used set of 4 on ebay from a junked 03 Disco, cost me only 70 bucks total. They look in great shape. But they are a little dark from carbon.
Is there a way to clean these or, due to the sensitivity, is this an absolute no-no? If I can clean em, what do you guys recommend? Or should i just stick em in and see what happens?
Is there a way to clean these or, due to the sensitivity, is this an absolute no-no? If I can clean em, what do you guys recommend? Or should i just stick em in and see what happens?
#10
Thread
Thread Starter
Forum
Replies
Last Post