Strange CGTt problem starts but won't stay lit...

[Huw Powell]

> I just finished re-installing the engine and trans into my '83 GT  (pilot
> bearing died)  I got it running but it keeps wanting to die...  The idle
> seems normal and it doesn't feel like it is running super rich, the car ran
> great until I pulled the motor out (only 4 months on the rebuild)
>
> The problem seems to be connected to the box on the radiator side of the
> engine that the fuel is connected to (control pressure reg???).  When the
> vacuum line to that is kinked then the car will start,  when it is un-kinked
> the car dies and then won't start..    the car has it's original K-jet/CIS
> fuel system on it..

Once upon a time I sketched out the manifold vacuum lines for my '82...
maybe it will help:

http://www.humanspeakers.com/audi/vacuum-system.htm

> Also the FP relay seems to be acting funny,  when I turn the key on I get
> nothing but if I get out and put my finger on it then the pump hums but
> sometimes the noise doesn't turn off it just keeps humming..

Sounds like the joys of the underdash fusebox.  I suspect I have changed
half the circuits through mine over time to keep it working, and how
some of it is wired is still a mystery.  I heard a rumor once that there
was a recall about 43 years ago to rearrange the fpr setup, but I don't
know what it involved.  All I know is my layout never resembled the
pictures in the manuals even when I got it.

Try to see if any of the connections to it are overheated or melty
looking, or wiggly to the touch.  Then trace the crazy circuits and
check the back side inputs that are for the fpr, if yours is mounted in
the main box still.  Mine is in an add-on socket above the main board.

--
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/