B5 Models Please discuss all 1996 - 2001 B5 A4 topics here...

O2 Sensor 4 or 5 wire?

Thread Tools
 
Search this Thread
 
  #1  
Old 05-19-2010, 12:45 AM
JBEEA's Avatar
1st Gear
Thread Starter
Join Date: Jan 2009
Location: Seattle,WA
Posts: 24
Angry O2 Sensor 4 or 5 wire?

I bought an O2 sensor from Autozone, it has 4 - wires (white, white, black, gray), the one I took out of mine has 5 - wire (white, black, gray, yellow, red). I checked twice and this appears to be the right sensor.

Not so sure what to do about the wire issue. Do I leave one off or take the sensor back?

Ideas?

Thanks,
 
  #2  
Old 05-19-2010, 08:13 AM
turbo kraut's Avatar
Tech Guru
Join Date: Nov 2006
Location: Des Peres, Mo
Posts: 5,868
Default

take it back

just order from a dealer on here
 
  #3  
Old 05-19-2010, 08:35 AM
hiwords's Avatar
5th Gear
Join Date: May 2007
Location: noob from NY
Posts: 7,728
Default

check the harness to the ECU. mine's 4 wire just like the bosch univsersals. maybe it's different on AWMs?
 
  #4  
Old 05-19-2010, 09:04 AM
dragonrage's Avatar
2nd Gear
Join Date: Sep 2009
Location: Massachusetts
Posts: 1,465
Default

5-wire on AWM and 4-wire on older engines. They are NOT compatible.
 
  #5  
Old 05-19-2010, 09:32 AM
JBEEA's Avatar
1st Gear
Thread Starter
Join Date: Jan 2009
Location: Seattle,WA
Posts: 24
Default

Thanks!
 
  #6  
Old 05-19-2010, 10:46 AM
turbo kraut's Avatar
Tech Guru
Join Date: Nov 2006
Location: Des Peres, Mo
Posts: 5,868
Default

your front 02 is 5 wires your rear is 4 wires... which one are you replacing?

they are color coded(plugs) so if you have a red end on the one your have it is the rear, also the rear "harness" is shorter than the front

i have an awm motor as well
 
  #7  
Old 05-19-2010, 11:05 AM
dragonrage's Avatar
2nd Gear
Join Date: Sep 2009
Location: Massachusetts
Posts: 1,465
Default

He took out a 5-wire so he's replacing the front.
 
  #8  
Old 05-19-2010, 11:17 AM
turbo kraut's Avatar
Tech Guru
Join Date: Nov 2006
Location: Des Peres, Mo
Posts: 5,868
Default

well, i said that, cause he was very vague.... and i was explaining the wire set-up....

my question was more a rhetorical..... and it sounds like they gave him a rear o2 sensor
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
r34got
B5 Models
1
11-21-2008 01:10 PM
Superdug
S Car Model Line
2
05-30-2008 06:18 PM
chosos
Audi TT
11
03-05-2008 12:09 PM
kstrike155
Audi A4
3
09-18-2006 02:40 AM
brogenville
Audi A4
4
12-11-2005 02:02 PM



Quick Reply: O2 Sensor 4 or 5 wire?



All times are GMT -4. The time now is 06:55 AM.