Need Vag-Com

[George]

My '91 200q20v I have owned since new and it has 315,000 miles on it. I have
been chasing a similar hiccup problem for the past year. I had the turbo
rebuilt about a year ago and it restored the performance dramatically. About
three months later the acceleration stumble started. A couple of months ago
the car went to 034 and Chris chased a fuel problem back to a new fuel pump
that had gone flakey. They did some other stuff, including a fuel pressure
gauge on the fuel rail, and then put the car on their dyno. It turned in
factory spec performance. But, the acceleration stumble remained under WOT. 

I am pretty sure all the vacuum lines and air supply are good and nobody has
been able to find a fuel system leak. So, last weekend I pulled the fuel
rail and the injectors just about fell out. The seals were all shot and
there is evidence around the manifold seats that the injectors have been
blowing. After all, 315,000 miles is asking a lot.  Anyway the injectors are
off to get reconditioned, new seats are going in, and in a  couple of weeks
we will see if this is the problem. And, I'll post the results..........

George Sidman