Oxygen Sensor

[Cody Forbes]

You likely have a vacuum leak. The easiest way to find it is with a smoke machine. Outside of that you'll have to visually inspect every vacuum hose you can find. There's a method with spray flammable liquid too, but that should probably be left to somebody with more experience.

-Cody Forbes (mobile)

> On May 26, 2015, at 4:00 PM, David Vanden <dvanden46 at gmail.com> wrote:
> 
> 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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