she starts, she won't run - 1990 200QA

[David Michael]

Well, after 12 years of owning a type44, the love affair may be ending.  Our
beloved 1990 200QA is seriously misbehaving. When cold, its starts
immediately, and then just as quickly dies.

I ran through the archived, and found a posting  from someone who had
exactly the same problem. Turns out that someone was ME - about 8 years ago.
The problem then was a vacuum leak through the valve cover gasket.

Unfortunately, not so easy this time. I rpeaced the gasket last year.  The
car has been at an experienced Audi mechanic for three weeks. They have
checekd all the sensors, all the pressures and all the control signals,
found no vacuum leaks and they said they all  checked out nominally. What
they told me is that there seems to be something in the fuel distribute that
is creating too lean a condition, but the only way to be sure was to replace
it. At which point I said stop. This all came on rather suddenly - the car
started fine through the 8 winters an  all through the summer and fall. But
when it got below 30 (finally), then it started misbehaving.

I am not really asking for advice hear, since I no longer have much time to
got out and fiddle with the car. I will check the valve cover gasket again,
since but short of that, I am stumped.

I am bummed.....

Dave
1990 200QA