Oxygen Sensor

[laraa at sympatico.ca]

As I said, if my memory is right, the throttle plate stop screw is only there to prevent the plate from binding in the body. So I think you adjust it so the plate is completely shut in the body but opens freely with your fingers. 

Air for idle shouldn’t not be allowed there, there is a throttle air bypass elsewhere. This is an electrical  device that is controlled by the ECU on which there is some rubber hoses to take air from the filter and introduce it behind the throttle plate according to idle load. 

 

Louis-Alain

 

De : David Vanden [mailto:dvanden46 at gmail.com] 
Envoyé : 26 mai 2015 17:23
À : laraa at sympatico.ca
Cc : audi at humanspeakers.com; quattro at audifans.com
Objet : Re: Oxygen Sensor

 

Well I all ready did.  I thought the factory setting was 4 and 1/4 turns to the left.  However, when I put it there it idled too high.  Anyone know what the factory setting is?  I have it turned all the way to the right to try and lower the idle but I guess I could live with a higher idle for now.

 

On Tue, May 26, 2015 at 4:24 PM, <laraa at sympatico.ca> wrote:

If memory serve, don't play with the throttle plate stop screw. It is supposed to be set at the factory to prevent any binding of the plate in the throttle body. Ask me how I now...

Louis-Alain



-----Message d'origine-----
De : quattro [mailto:quattro-bounces at audifans.com] De la part de David Vanden
Envoyé : 26 mai 2015 16:01
À : audi at humanspeakers.com
Cc : quattro at audifans.com
Objet : Re: Oxygen Sensor


I will put in an oxygen sensor.  Thanks for the advice.  On a separate note I just replaced the fuel pump and she is idling too high.  I tried adjusting the mixture but that didn't fix it.  Any ideas?  Decreasing the air on the throttle by setting the screw all the way to the right decreased it but not enough.  Any suggestions?

David

On Tue, May 26, 2015 at 2:54 PM, Huw Powell <audi at humanspeakers.com> wrote:

> Short term, for testing or diagnosing, it will run.
>
> Startup will be normal, but when the engine gets to operating
> temperature, the computer won't be able to manage the mixture properly.
>
> Run without it for any length of time - like leaving home - can do
> very bad things to the catalytic converter.  Fuel economy will also suffer.
>
> So first test if the OXS is working.  Then if it isn't, replace it.
> Yes, I know, if this is a 4kq, it is *very* hard to get to, and it
> will be rust-welded in place.
>
> This might help:
>
> http://audi.humanspeakers.com/timing2.htm
>
> - Huw
>
> On 5/26/2015 11:17 AM, dvanden46 at gmail.com wrote:
>
>> Has anyone noticed if it is detrimental to the car or if the car runs
>> worse with the oxygen sensor disconnected?  This is for the CIS E system.
>>
>>
>>
>>
>>
>>
>> Sent from Windows Mail
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