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Stumped, fuel problem

In message <343B8D97.4CA9@sprintmail.com> Jon Meckem writes:

> My 86 5ktq will not start,  It starts fine in the morning but after it
> gets up to operating temp. it will no longer start.

Instant idea is that the warmup regulator (aka control pressure regulator) has 
gone west and is delivering system pressure rather than control pressure to the 
top of the metering head.

A quick trick is to pull the connector off it and unscrew it from the engine 
block, suspending it in mid-air.  Let it cool off, and see if your problem goes 

Otherwise, if your car is equipped for code pulling (fuse holder in fuel pump 
relay) then pull the codes.  Simply spin the engine on the starter for five 
seconds or more, leave the ignition switched on, and pull the codes.

 Phil Payne
 Committee Member, UK Audi [ur-]quattro Owners Club