my version of the idle problem

[blake at clockworm.com (Blake Irvin)]

cool.  please do send diagrams if you have them.

i can easily believe that there is all kinds of gum in this car - it  
sat on the street from april to end of september and didn't run, so  
who knows.  whatever it is, it's definitely temp related, since the  
car runs fine cold or totally hot.

blake/


On Oct 20, 2005, at 7:44 AM, C Boyko wrote:

> On 2:56:33 am 10/20/05 "Dick Y Wong" <sailingfc@dslextreme.com> wrote:
>
>> One guess is that it's the control pressure regulator is closing too
>> soon or there may be a restriction in it that makes it look like it's
>> closing too soon.  Try unplugging the electrical connector to the CPR
>> the next time you start the cold engine and see it the symptoms are
>> the same. Second guess is that the auxilliary air valve (does a 16V
>> have this?) is stuck closed or not fully open, when cold. Check it
>> out. Good Luck.
>>
>> -Dick-
>> 78 Scirocco
>> Original Owner
>> 95 Passat GLX
>> Second Owner
>>
>>
> The 16V (CIS-E) is a bit different than CIS, and it has an idle  
> stabiliser
> valve (which folks usually shorten to ISV) on the engine, it'll  
> have some
> big air hoses to it, and an electrical plug (much like an AAV  
> does). I'm
> not sure if ISV problems behave like yours, but it may be something to
> check.
> If you like, I can copy the pages in my Bosch injection book so you  
> can see
> what the parts all do. Or in your case, do when they feel like it.  
> Control
> of fuel has an electrical component lacking in the non-E cars,  
> which  makes
> trouble shooting all the more fun. Knock on wood, glad mine's happy.
>
> cathy
> 1979 CIS 8V
> 1987 CIS-E 16V
>
>
>