Volvo Forums - Volvo Enthusiasts Forum

Volvo S80 A performance sedan that offers top notch luxury, outstanding handling and so much more.

o2 sensor heater after the cats

Thread Tools
 
Search this Thread
 
  #1  
Old 03-12-2019, 06:56 PM
gregs80's Avatar
Member
Thread Starter
Join Date: Mar 2016
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Default o2 sensor heater after the cats
does any body know if the heater on the o2 is turned on by ground or positive. and does the heater circuit use a relay to turn them on.
 
Last edited by gregs80; 03-13-2019 at 03:15 AM.
Reply Like
  #2  
Old 04-11-2019, 03:42 AM
gregs80's Avatar
Member
Thread Starter
Join Date: Mar 2016
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Default
well i got that code to go away and now I have 2 more codes that came up,what a pain in the ***
 
Reply Like
  #3  
Old 04-11-2019, 05:33 PM
mt6127's Avatar
Super Moderator
Join Date: Mar 2012
Location: Burlington, VT
Posts: 9,219
Received 487 Likes on 468 Posts
Default
curious which codes and how did you get the original code to go away... and the wiring for the O2 sensors are generic, you can google for the wire color coding.
 
Reply Like
  #4  
Old 04-15-2019, 12:55 AM
gregs80's Avatar
Member
Thread Starter
Join Date: Mar 2016
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Default
codes were p0036.p0140.

replaced o2 sensor again.only had 10.000 miles on it maybe

pasted EPA 4 days later 2 new codes for running rich
 
Reply Like
  #5  
Old 04-15-2019, 12:56 AM
gregs80's Avatar
Member
Thread Starter
Join Date: Mar 2016
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Default
going to see about some hotter plugs
 
Reply Like
  #6  
Old 04-19-2019, 04:56 PM
mt6127's Avatar
Super Moderator
Join Date: Mar 2012
Location: Burlington, VT
Posts: 9,219
Received 487 Likes on 468 Posts
Default
or check for air leaks, exhaust leaks
 
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Which o2 sensor do i need? here are the codes
trussguy
Volvo V70
9
12-06-2023 08:22 PM
O2 sensor overnight with seafoam
squareface1
Volvo S60 & V60
1
03-11-2018 06:34 PM
P0130 & P0135 O2 Sensor Codes
ajwgator
Volvo XC70
2
10-04-2010 09:50 AM
OBD II Codes
gilber33
Volvo 850
15
10-19-2009 07:01 PM
Pulled 4 codes from OBD2
my_d3c3mb3r
Volvo 850
5
03-24-2006 09:30 PM
Back to Subforum
Volvo S80
View Next Unread
Shutdown when hot




Advanced Search
Quick Reply: o2 sensor heater after the cats


Reply Closed Thread Share

All times are GMT -5. The time now is 12:53 PM.