Audi Original "S" Cars Discussion forum for the Audi Audi Ur S4, Ur S6, S2 & RS2

Where does the Lambda 'heater element' get it's power from?

Thread Tools
 
Search this Thread
 
Old 05-20-2003, 05:43 PM
  #1  
AudiWorld Member
Thread Starter
 
unicomS4's Avatar
 
Join Date: Apr 2003
Posts: 244
Likes: 0
Received 0 Likes on 0 Posts
Default Where does the Lambda 'heater element' get it's power from?

<center><img src="http://www.unicomsystems.co.uk/Images01/S4UNiCOM01.jpg"></center><p>
The sensor has three wires in total. x2 at a plug connector &amp; x1 connected via a spade terminal [black].

None of the above seem to supply 12v with the ignition on or off!<ul><li><a href="http://www.unicomsystems.co.uk">Stock [ but not for long ] '92 UK Spec urS4</a></li></ul>
Old 05-20-2003, 06:12 PM
  #2  
AudiWorld Super User
 
20VT90q's Avatar
 
Join Date: Sep 2002
Posts: 5,825
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Where does the Lambda 'heater element' get it's power from?

The single black wire is for the oxygen readings. The other two white wires run the sensors heater. For 02's with no heater there is only one wire, the "sensor" wire. If you are going to cut and splice a new universal sensor in all you need to do is connect black to black and "any of the two whites to any of the other two white wires".
Old 05-20-2003, 07:10 PM
  #3  
AudiWorld Member
Thread Starter
 
unicomS4's Avatar
 
Join Date: Apr 2003
Posts: 244
Likes: 0
Received 0 Likes on 0 Posts
Default Yes but ....

where on the three wire Bosch set-up does the + white wire get it's supply from?
Old 05-20-2003, 11:42 PM
  #4  
Junior Member
 
Mihnea's Avatar
 
Join Date: Sep 2001
Posts: 1,239
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Yes but ....

Hi!

The heater wires get their supply from a fuse in the fusebox, which one exactly I can't tell you because I have no UrS4 personnally...

Hope this helps,


Mihnea
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mofologic
Audi 5000 / 200 / V8 Discussion
0
08-24-2005 01:25 PM
BoostFrenzy
Audi 90 / 80 / Coupe quattro / Cabriolet
2
12-22-2004 07:14 PM
85-4kq-girl
Audi 4000 / Coupe GT Discussion
4
10-20-2004 07:23 AM
mike90q
Audi 90 / 80 / Coupe quattro / Cabriolet
8
06-27-2001 02:39 PM
yellowsub
A4 (B5 Platform) Discussion
4
06-12-2001 06:23 PM



Quick Reply: Where does the Lambda 'heater element' get it's power from?



All times are GMT -8. The time now is 12:33 AM.