AudiWorld Forums

O2 ?'s: Which side is Bank 1? Which sensor is S1? Pre or post cat?

Thread Tools
 
Search this Thread
 
Old 12-03-2006, 05:55 PM
  #1  
New Member
Thread Starter
 
Es4go's Avatar
 
Join Date: Mar 2004
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
Default
O2 ?'s: Which side is Bank 1? Which sensor is S1? Pre or post cat?
Es4go is offline  
Reply Like
Old 12-04-2006, 01:16 PM
  #2  
AudiWorld Super User
 
quickaudi:STFA's Avatar
 
Join Date: Dec 2004
Posts: 9,984
Likes: 0
Received 1 Like on 1 Post
Default
S1 is pre cat. Just replace 'em both.
quickaudi:STFA is offline  
Reply Like
Old 12-21-2006, 11:21 AM
  #3  
AudiWorld Super User
 
Swank4's Avatar
 
Join Date: Aug 2002
Location: San Francisco
Posts: 6,762
Likes: 0
Received 0 Likes on 0 Posts
Default
B1S1 = passenger primary. Usually you replace both sides at once to be safe.
Swank4 is offline  
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
post CAT O2 sensors
icks90
A6 / S6 (C5 Platform) Discussion
10
01-01-2014 03:27 PM
Mini cat did not work.
Philhawtin
A6 / S6 (C5 Platform) Discussion
7
08-17-2011 04:22 AM
Post Cat O2 sensor, can't get leverage on it.
Type_Audi
A4 (B6 Platform) Discussion
0
10-18-2010 04:47 PM
how do i replace post cat O2 sensor?
FLACO X3
A4 (B5 Platform) Discussion
3
06-24-2008 05:39 AM
to the o2 sensor gurus
theodore
A4 (B5 Platform) Discussion
8
02-04-2005 02:47 PM
Back to Subforum
2.7T V6 Discussion
View Next Unread
new owner 2001 S4




Advanced Search
Quick Reply: O2 ?'s: Which side is Bank 1? Which sensor is S1? Pre or post cat?


Reply Closed Thread Share

All times are GMT -8. The time now is 01:00 AM.