[V8] New O2 Sensor- Whhhhaaaatt

Ingo Rautenberg i.rautenberg at waratap.com
Mon Jul 17 14:56:46 EDT 2006


Steve,

Since i'm at work right now I can't verify.  But that's what I recall  
from the Factory Manual reading of yesterday.  Yeah, I looked twice,  
too.  I thought the resistance value would/ should be much higher...

Will recheck when I get home.

On Jul 17, 2006, at 2:33 PM, Buchholz, Steven wrote:

> ... you can infer the values from the OBD section on the EFI  
> system.  The coolant temp sensor is one of the ten parameters that  
> the ECU logs.  I can read the values out using ProDiag ... should  
> also be possible from VAG-COM.  The advantage of using this method  
> is that you see the value that the ECU sees ... and you don't get  
> your hands dirty ... or burned!
>
> It is a bummer to hear that the value is so low ... are you sure  
> this is right Ingo?  Resistance measurement in such a low range is  
> prone to errors due to connector resistance.
>
> Steve B
> San José, CA (USA)
>>
>> Yes to the sensor on the back of the head.  The initial Service
>> training document even has a graphic on the proper sensor Ohm
>> readings, which, surprisingly are not in the four book volume.  There
>> it only states that the sensor reading on a 'cold' engine at room
>> temperature should read between 1.5 and 3 Ohms.  (mine read at 1.46 -
>> close enough).  Now I need to check the resistance when it's hot...
> _______________________________________________
> Audifans V8 mailing list
> Send posts to: mailto:V8 at audifans.com
> Manage your list connection: http://www.audifans.com/mailman/ 
> listinfo/v8
> Have an Audi V8 question?  Check the Audifans Knowledgebase!
> http://www.audifans.com/twiki/bin/view/Audi/V8
> Have a V8 answer? ... Please help others by adding to the KB ...  
> all contributions welcome!



More information about the V8 mailing list