No Start '94 100S...the common suspects have been eliminated...ideas??

[Tom]

fuses for the ECU ?

> >My '94 100S has been perfectly reliable for the 5 years I have owned it.
> Two
> >weeks ago, it would not start...no problem turning over...a computer
> >somewhere appears to be not giving the ok to start...towed the car to a
shop
> >great in diagnostics.
> >
> >No error codes.  The shop has been going through and swapping out
computer
> >parts from a same vintage, but running Audi, in an attempt to identify
the
> >problem.  The common suspects, the crankshaft position sensor and the
> >ignition control module appear to be working properly.
> >
> >Before the shop goes the next step and pulls the main and very expensive
ECU
> >deeply buried behind the glove box...has anyone out there seen this kind
of
> >problem, or have some ideas on how to find the culprit?
> >
> >Even the Audi technician at the local dealer is stumped.
> >
> >Chris W.