200 10V stumbles, poor mileage

[john at westcoastgarage.net]

john at westcoastgarage.net wrote:
> <div class="moz-text-flowed" style="font-family: 
> -moz-fixed">kbogach at comcast.net wrote:
>> To clarify, it is as 12V on the connector, meaning the ECU keeps 
>> ground on pin 1 (CSV) all the time when engine runs.
>>
>> Konstantine.
>>
>> ----- Original Message -----
>> From: "Huw Powell" <audi at humanspeakers.com>
>> To: kbogach at comcast.net
>> Cc: john at westcoastgarage.net, "Ben Swann" <benswann at verizon.net>, 
>> "Quattro List" <quattro at audifans.com>
>> Sent: Monday, December 28, 2009 10:54:03 PM (GMT-0500) Auto-Detected
>> Subject: Re: 200 10V stumbles, poor mileage
>>
>>
>> >> **** One thing surprised me: why cold start valve is powered all 
>> the time? Is it
>> >> supposed to? ****
>>
>> The usual way they work is that the ground is switched.  So, yes, it
>> probably gets konstant 12v.
>>
>> -- 
>> Huw Powell
>>
>> http://www.humanspeakers.com/audi
>>
>> http://www.humanthoughts.org/
> Pardon me, but this thread has been going on for a while, and I don't 
> remember what MY the car is.  If you'll tell me that, I'll go to the 
> wiring diagram and put this to rest.  John
>
> </div>
>
OK.  Power on all the time (key on), ground provided by the ECU.  I was 
wrong in my previous post.  If the CSV is activated all the time, 
there's a ground issue, probably involving the ECU, unless some hack has 
been nice enough to provide one, or the wire has somehow grounded 
somewhere between the ECU and the valve.  John