Fuel system shuts down

[John Lag see]

Do those have a pre-pump in the gas tank? What year is it? I still have my 80-83 4K Bentley for reference.
I had a 1.8 L Jetta that had somewhat similar symptoms. It turned out to be a temperature sensor. It was on the engine where the hose came from the radiator. Try unplugging it to see if the car runs. 
John
Sent from my iPhone

> On Nov 12, 2015, at 6:28 AM, David Vanden <vandendavid18 at yahoo.com> wrote:
> 
> I have got my 4000 Quattro running like a dream and then after running it for a while the fuel pump shuts off.  I put a performance pump on it , but that pump is universal and should work.  I was advised by a mechanic that the check valve in the fuel distributor could be clogged with gunk or that there could be gunk in the gas tank that is obstructing the increased pressure demands causing the pump to eventually overheat or the circuit to overheat and then shut off.  Has anyone had any experience with this.  What might be causing the system to get clogged or not be able to fulfill the increased pressure demands.  I got the pump from ECS tuning and it is a Bosch pump.  They use it on porsche and other such cars.  It is a good pump and it is on right.  I changed the main fuel filter that is by the pump that attaches with a banjo bolt.  Has anyone experienced this same scenario or does anyone have any ideas of what might be causing the problem or what modifications would need to be made to the fuel system to allow the pump to work continuously?  Please let me know.  I will most likely bring it to a mechanic but it would be good to have an idea about what is going on with it.
> Sincerely,
> David
> _______________________________________________
> quattro mailing list
> http://www.audifans.com/mailman/listinfo/quattro
> http://www.audifans.com/kb/List_information